31123343412035 has 24 divisors (see below), whose sum is σ = 43449925082256. Its totient is φ = 21339619546560.

The previous prime is 31123343412017. The next prime is 31123343412079. The reversal of 31123343412035 is 53021434332113.

It is not a de Polignac number, because 31123343412035 - 2²² = 31123339217731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a junction number, because it is equal to n+sod(n) for n = 31123343411986 and 31123343412004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3759896 + ... + 8739765.

It is an arithmetic number, because the mean of its divisors is an integer number (1810413545094).

Almost surely, 2^{31123343412035} is an apocalyptic number.

31123343412035 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

31123343412035 is a deficient number, since it is larger than the sum of its proper divisors (12326581670221).

31123343412035 is a wasteful number, since it uses less digits than its factorization.

31123343412035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12509843 (or 12509836 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

Adding to 31123343412035 its reverse (53021434332113), we get a palindrome (84144777744148).

The spelling of 31123343412035 in words is "thirty-one trillion, one hundred twenty-three billion, three hundred forty-three million, four hundred twelve thousand, thirty-five".