31020420414 has 16 divisors (see below), whose sum is σ = 65306148480. Its totient is φ = 9795922200.

The previous prime is 31020420377. The next prime is 31020420427. The reversal of 31020420414 is 41402402013.

It is a super-2 number, since 2×31020420414² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136054362 + ... + 136054589.

It is an arithmetic number, because the mean of its divisors is an integer number (4081634280).

Almost surely, 2^31020420414 is an apocalyptic number.

31020420414 is an abundant number, since it is smaller than the sum of its proper divisors (34285728066).

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

31020420414 is a wasteful number, since it uses less digits than its factorization.

31020420414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272108975.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 31020420414 its reverse (41402402013), we get a palindrome (72422822427).

The spelling of 31020420414 in words is "thirty-one billion, twenty million, four hundred twenty thousand, four hundred fourteen".