140020211031 has 16 divisors (see below), whose sum is σ = 199361372160. Its totient is φ = 87220596960.

The previous prime is 140020211027. The next prime is 140020211053. The reversal of 140020211031 is 130112020041.

It is not a de Polignac number, because 140020211031 - 2² = 140020211027 is a prime.

It is a super-2 number, since 2×140020211031² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140020211031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140020211081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25955815 + ... + 25961208.

It is an arithmetic number, because the mean of its divisors is an integer number (12460085760).

Almost surely, 2^140020211031 is an apocalyptic number.

140020211031 is a deficient number, since it is larger than the sum of its proper divisors (59341161129).

140020211031 is a wasteful number, since it uses less digits than its factorization.

140020211031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51917086.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 140020211031 its reverse (130112020041), we get a palindrome (270132231072).

The spelling of 140020211031 in words is "one hundred forty billion, twenty million, two hundred eleven thousand, thirty-one".