31021004214 has 64 divisors (see below), whose sum is σ = 69500820480. Its totient is φ = 10255766400.

The previous prime is 31021004207. The next prime is 31021004281. The reversal of 31021004214 is 41240012013.

31021004214 is a `hidden beast` number, since 31 + 0 + 210 + 0 + 421 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5925342 + ... + 5930574.

It is an arithmetic number, because the mean of its divisors is an integer number (1085950320).

Almost surely, 2^31021004214 is an apocalyptic number.

31021004214 is an abundant number, since it is smaller than the sum of its proper divisors (38479816266).

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

31021004214 is a wasteful number, since it uses less digits than its factorization.

31021004214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6122 (or 6116 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 31021004214 its reverse (41240012013), we get a palindrome (72261016227).

The spelling of 31021004214 in words is "thirty-one billion, twenty-one million, four thousand, two hundred fourteen".