1231710632641 has 4 divisors (see below), whose sum is σ = 1232664708784. Its totient is φ = 1230756556500.

The previous prime is 1231710632611. The next prime is 1231710632681. The reversal of 1231710632641 is 1462360171321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231710632641 is a prime.

It is a super-2 number, since 2×1231710632641² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231710632641.

It is not an unprimeable number, because it can be changed into a prime (1231710632611) 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, 477036135 + ... + 477038716.

It is an arithmetic number, because the mean of its divisors is an integer number (308166177196).

Almost surely, 2^{1231710632641} is an apocalyptic number.

It is an amenable number.

1231710632641 is a deficient number, since it is larger than the sum of its proper divisors (954076143).

1231710632641 is an equidigital number, since it uses as much as digits as its factorization.

1231710632641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954076142.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 1231710632641 in words is "one trillion, two hundred thirty-one billion, seven hundred ten million, six hundred thirty-two thousand, six hundred forty-one".