11312111440657 has 8 divisors (see below), whose sum is σ = 11316516333920. Its totient is φ = 11307706816320.

The previous prime is 11312111440621. The next prime is 11312111440757. The reversal of 11312111440657 is 75604411121311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11312111440657 - 2³¹ = 11309963957009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11312111440757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136102969 + ... + 136186057.

It is an arithmetic number, because the mean of its divisors is an integer number (1414564541740).

Almost surely, 2^{11312111440657} is an apocalyptic number.

It is an amenable number.

11312111440657 is a deficient number, since it is larger than the sum of its proper divisors (4404893263).

11312111440657 is an equidigital number, since it uses as much as digits as its factorization.

11312111440657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134463.

The product of its (nonzero) digits is 20160, while the sum is 37.

Adding to 11312111440657 its reverse (75604411121311), we get a palindrome (86916522561968).

The spelling of 11312111440657 in words is "eleven trillion, three hundred twelve billion, one hundred eleven million, four hundred forty thousand, six hundred fifty-seven".