31143102002345 has 16 divisors (see below), whose sum is σ = 37884891687552. Its totient is φ = 24574296144000.

The previous prime is 31143102002339. The next prime is 31143102002359. The reversal of 31143102002345 is 54320020134113.

It is a de Polignac number, because none of the positive numbers 2^k-31143102002345 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120332972 + ... + 120591501.

It is an arithmetic number, because the mean of its divisors is an integer number (2367805730472).

Almost surely, 2^{31143102002345} is an apocalyptic number.

It is an amenable number.

31143102002345 is a deficient number, since it is larger than the sum of its proper divisors (6741789685207).

31143102002345 is a wasteful number, since it uses less digits than its factorization.

31143102002345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240924832.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 31143102002345 its reverse (54320020134113), we get a palindrome (85463122136458).

The spelling of 31143102002345 in words is "thirty-one trillion, one hundred forty-three billion, one hundred two million, two thousand, three hundred forty-five".