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10121202032213 = 73138646603181
BaseRepresentation
bin1001001101001000011010…
…1001101101111001010101
31022211120120222020102112102
42103102012221231321111
52311311210210012323
633305341021131445
72063142551540636
oct223220651557125
938746528212472
1010121202032213
113252417762798
1211756820b9b85
1358556b39904c
1426dc23d7388d
151284206d6328
hex93486a6de55

10121202032213 has 4 divisors (see below), whose sum is σ = 10259848635468. Its totient is φ = 9982555428960.

The previous prime is 10121202032203. The next prime is 10121202032237. The reversal of 10121202032213 is 31223020212101.

10121202032213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4830751222609 + 5290450809604 = 2197897^2 + 2300098^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121202032213 - 212 = 10121202028117 is a prime.

It is a super-2 number, since 2×101212020322132 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121202032203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69323301518 + ... + 69323301663.

It is an arithmetic number, because the mean of its divisors is an integer number (2564962158867).

Almost surely, 210121202032213 is an apocalyptic number.

It is an amenable number.

10121202032213 is a deficient number, since it is larger than the sum of its proper divisors (138646603255).

10121202032213 is an equidigital number, since it uses as much as digits as its factorization.

10121202032213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138646603254.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 10121202032213 its reverse (31223020212101), we get a palindrome (41344222244314).

The spelling of 10121202032213 in words is "ten trillion, one hundred twenty-one billion, two hundred two million, thirty-two thousand, two hundred thirteen".

Divisors: 1 73 138646603181 10121202032213