31021002342 has 48 divisors (see below), whose sum is σ = 74524404240. Its totient is φ = 9246196800.

The previous prime is 31021002329. The next prime is 31021002367. The reversal of 31021002342 is 24320012013.

31021002342 is a `hidden beast` number, since 310 + 2 + 10 + 0 + 2 + 342 = 666.

It is a super-3 number, since 3×31021002342³ (a number of 32 digits) contains 333 as substring.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1272117 + ... + 1296272.

It is an arithmetic number, because the mean of its divisors is an integer number (1552591755).

Almost surely, 2^31021002342 is an apocalyptic number.

31021002342 is an abundant number, since it is smaller than the sum of its proper divisors (43503401898).

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

31021002342 is a wasteful number, since it uses less digits than its factorization.

31021002342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568469 (or 2568466 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 31021002342 its reverse (24320012013), we get a palindrome (55341014355).

The spelling of 31021002342 in words is "thirty-one billion, twenty-one million, two thousand, three hundred forty-two".