31020420314 has 32 divisors (see below), whose sum is σ = 51858213120. Its totient is φ = 13817990592.

The previous prime is 31020420313. The next prime is 31020420331. The reversal of 31020420314 is 41302402013.

It is not an unprimeable number, because it can be changed into a prime (31020420311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2378399 + ... + 2391405.

It is an arithmetic number, because the mean of its divisors is an integer number (1620569160).

Almost surely, 2^31020420314 is an apocalyptic number.

31020420314 is a deficient number, since it is larger than the sum of its proper divisors (20837792806).

31020420314 is a wasteful number, since it uses less digits than its factorization.

31020420314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16214.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31020420314 its reverse (41302402013), we get a palindrome (72322822327).

The spelling of 31020420314 in words is "thirty-one billion, twenty million, four hundred twenty thousand, three hundred fourteen".