31214203021420 has 12 divisors (see below), whose sum is σ = 65549826345024. Its totient is φ = 12485681208560.

The previous prime is 31214203021409. The next prime is 31214203021429. The reversal of 31214203021420 is 2412030241213.

It is not an unprimeable number, because it can be changed into a prime (31214203021429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780355075516 + ... + 780355075555.

It is an arithmetic number, because the mean of its divisors is an integer number (5462485528752).

Almost surely, 2^{31214203021420} is an apocalyptic number.

It is an amenable number.

31214203021420 is an abundant number, since it is smaller than the sum of its proper divisors (34335623323604).

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

31214203021420 is a wasteful number, since it uses less digits than its factorization.

31214203021420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560710151080 (or 1560710151078 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31214203021420 its reverse (2412030241213), we get a palindrome (33626233262633).

The spelling of 31214203021420 in words is "thirty-one trillion, two hundred fourteen billion, two hundred three million, twenty-one thousand, four hundred twenty".