31102401442 has 32 divisors (see below), whose sum is σ = 56506902912. Its totient is φ = 12533923584.

The previous prime is 31102401433. The next prime is 31102401457. The reversal of 31102401442 is 24410420113.

It is a happy 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, 200353 + ... + 319915.

It is an arithmetic number, because the mean of its divisors is an integer number (1765840716).

Almost surely, 2^31102401442 is an apocalyptic number.

31102401442 is a deficient number, since it is larger than the sum of its proper divisors (25404501470).

31102401442 is a wasteful number, since it uses less digits than its factorization.

31102401442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120682.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 31102401442 its reverse (24410420113), we get a palindrome (55512821555).

The spelling of 31102401442 in words is "thirty-one billion, one hundred two million, four hundred one thousand, four hundred forty-two".