31142403433102 has 32 divisors (see below), whose sum is σ = 50516897840640. Its totient is φ = 14313474945120.

The previous prime is 31142403433091. The next prime is 31142403433129. The reversal of 31142403433102 is 20133430424113.

It is a congruent 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, 17697849 + ... + 19377787.

It is an arithmetic number, because the mean of its divisors is an integer number (1578653057520).

Almost surely, 2^{31142403433102} is an apocalyptic number.

31142403433102 is a deficient number, since it is larger than the sum of its proper divisors (19374494407538).

31142403433102 is a wasteful number, since it uses less digits than its factorization.

31142403433102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682928.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 31142403433102 its reverse (20133430424113), we get a palindrome (51275833857215).

The spelling of 31142403433102 in words is "thirty-one trillion, one hundred forty-two billion, four hundred three million, four hundred thirty-three thousand, one hundred two".