31002201142 has 16 divisors (see below), whose sum is σ = 50735849472. Its totient is φ = 14090527720.

The previous prime is 31002201121. The next prime is 31002201157. The reversal of 31002201142 is 24110220013.

It is a super-2 number, since 2×31002201142² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180363 + ... + 307465.

It is an arithmetic number, because the mean of its divisors is an integer number (3170990592).

Almost surely, 2^31002201142 is an apocalyptic number.

31002201142 is a deficient number, since it is larger than the sum of its proper divisors (19733648330).

31002201142 is a wasteful number, since it uses less digits than its factorization.

31002201142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138203.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 31002201142 its reverse (24110220013), we get a palindrome (55112421155).

The spelling of 31002201142 in words is "thirty-one billion, two million, two hundred one thousand, one hundred forty-two".