11312014421231 has 2 divisors, whose sum is σ = 11312014421232. Its totient is φ = 11312014421230.

The previous prime is 11312014421209. The next prime is 11312014421243. The reversal of 11312014421231 is 13212441021311.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11312014421231 is a prime.

It is a super-2 number, since 2×11312014421231² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11312014421231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11312014421251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5656007210615 + 5656007210616.

It is an arithmetic number, because the mean of its divisors is an integer number (5656007210616).

Almost surely, 2^{11312014421231} is an apocalyptic number.

11312014421231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11312014421231 is an equidigital number, since it uses as much as digits as its factorization.

11312014421231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 11312014421231 its reverse (13212441021311), we get a palindrome (24524455442542).

The spelling of 11312014421231 in words is "eleven trillion, three hundred twelve billion, fourteen million, four hundred twenty-one thousand, two hundred thirty-one".