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10121031301 = 16696064129
BaseRepresentation
bin10010110110100001…
…01010111010000101
3222010100111122212011
421123100222322011
5131211441000201
64352144454221
7505544226613
oct113320527205
928110448764
1010121031301
114324070687
121b6561a371
13c53ab5924
146c026a6b3
153e3819151
hex25b42ae85

10121031301 has 4 divisors (see below), whose sum is σ = 10127097100. Its totient is φ = 10114965504.

The previous prime is 10121031289. The next prime is 10121031341. The reversal of 10121031301 is 10313012101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10313012101 = 71473287443.

It can be written as a sum of positive squares in 2 ways, for example, as 4868550625 + 5252480676 = 69775^2 + 72474^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121031301 - 25 = 10121031269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121031341) 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, 3030396 + ... + 3033733.

It is an arithmetic number, because the mean of its divisors is an integer number (2531774275).

Almost surely, 210121031301 is an apocalyptic number.

It is an amenable number.

10121031301 is a deficient number, since it is larger than the sum of its proper divisors (6065799).

10121031301 is an equidigital number, since it uses as much as digits as its factorization.

10121031301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6065798.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 10121031301 its reverse (10313012101), we get a palindrome (20434043402).

The spelling of 10121031301 in words is "ten billion, one hundred twenty-one million, thirty-one thousand, three hundred one".

Divisors: 1 1669 6064129 10121031301