1312302354261 has 16 divisors (see below), whose sum is σ = 1853648265600. Its totient is φ = 822967123968.

The previous prime is 1312302354257. The next prime is 1312302354263. The reversal of 1312302354261 is 1624532032131.

It is not a de Polignac number, because 1312302354261 - 2² = 1312302354257 is a prime.

It is a super-2 number, since 2×1312302354261² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312302354263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6751276 + ... + 6942933.

It is an arithmetic number, because the mean of its divisors is an integer number (115853016600).

Almost surely, 2^{1312302354261} is an apocalyptic number.

It is an amenable number.

1312302354261 is a deficient number, since it is larger than the sum of its proper divisors (541345911339).

1312302354261 is a wasteful number, since it uses less digits than its factorization.

1312302354261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13696108.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 1312302354261 its reverse (1624532032131), we get a palindrome (2936834386392).

The spelling of 1312302354261 in words is "one trillion, three hundred twelve billion, three hundred two million, three hundred fifty-four thousand, two hundred sixty-one".