31353211442 has 24 divisors (see below), whose sum is σ = 54804063600. Its totient is φ = 13413534120.

The previous prime is 31353211411. The next prime is 31353211447. The reversal of 31353211442 is 24411235313.

It is not an unprimeable number, because it can be changed into a prime (31353211447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224192 + ... + 336107.

It is an arithmetic number, because the mean of its divisors is an integer number (2283502650).

Almost surely, 2^31353211442 is an apocalyptic number.

31353211442 is a deficient number, since it is larger than the sum of its proper divisors (23450852158).

31353211442 is a wasteful number, since it uses less digits than its factorization.

31353211442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560886 (or 560879 counting only the distinct ones).

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

Adding to 31353211442 its reverse (24411235313), we get a palindrome (55764446755).

The spelling of 31353211442 in words is "thirty-one billion, three hundred fifty-three million, two hundred eleven thousand, four hundred forty-two".