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1213141402201 = 1771361258953
BaseRepresentation
bin10001101001110100110…
…111001100001001011001
311021222022220120111210111
4101221310313030021121
5124334003144332301
62325150502244321
7153434526531001
oct21516467141131
94258286514714
101213141402201
11428543771073
121771467266a1
138a525068041
1442a05981001
152185376e551
hex11a74dcc259

1213141402201 has 4 divisors (see below), whose sum is σ = 1284502661172. Its totient is φ = 1141780143232.

The previous prime is 1213141402181. The next prime is 1213141402217. The reversal of 1213141402201 is 1022041413121.

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 679839826576 + 533301575625 = 824524^2 + 730275^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213141402201 - 219 = 1213140877913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213141402601) 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, 35680629460 + ... + 35680629493.

It is an arithmetic number, because the mean of its divisors is an integer number (321125665293).

Almost surely, 21213141402201 is an apocalyptic number.

It is an amenable number.

1213141402201 is a deficient number, since it is larger than the sum of its proper divisors (71361258971).

1213141402201 is an equidigital number, since it uses as much as digits as its factorization.

1213141402201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71361258970.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1213141402201 its reverse (1022041413121), we get a palindrome (2235182815322).

The spelling of 1213141402201 in words is "one trillion, two hundred thirteen billion, one hundred forty-one million, four hundred two thousand, two hundred one".

Divisors: 1 17 71361258953 1213141402201