31140102342 has 32 divisors (see below), whose sum is σ = 65963925504. Its totient is φ = 9766454400.

The previous prime is 31140102311. The next prime is 31140102377. The reversal of 31140102342 is 24320104113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300867 + ... + 390897.

It is an arithmetic number, because the mean of its divisors is an integer number (2061372672).

Almost surely, 2^31140102342 is an apocalyptic number.

31140102342 is an abundant number, since it is smaller than the sum of its proper divisors (34823823162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31140102342 is a wasteful number, since it uses less digits than its factorization.

31140102342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93444.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31140102342 its reverse (24320104113), we get a palindrome (55460206455).

The spelling of 31140102342 in words is "thirty-one billion, one hundred forty million, one hundred two thousand, three hundred forty-two".