11431685460431 has 4 divisors (see below), whose sum is σ = 11476166727072. Its totient is φ = 11387204193792.

The previous prime is 11431685460427. The next prime is 11431685460443. The reversal of 11431685460431 is 13406458613411.

11431685460431 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 is a cyclic number.

It is not a de Polignac number, because 11431685460431 - 2² = 11431685460427 is a prime.

It is a super-2 number, since 2×11431685460431² (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 (11431685450431) 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, 22240632935 + ... + 22240633448.

It is an arithmetic number, because the mean of its divisors is an integer number (2869041681768).

Almost surely, 2^{11431685460431} is an apocalyptic number.

11431685460431 is a deficient number, since it is larger than the sum of its proper divisors (44481266641).

11431685460431 is an equidigital number, since it uses as much as digits as its factorization.

11431685460431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44481266640.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 11431685460431 in words is "eleven trillion, four hundred thirty-one billion, six hundred eighty-five million, four hundred sixty thousand, four hundred thirty-one".