210112431140 has 12 divisors (see below), whose sum is σ = 441236105436. Its totient is φ = 84044972448.

The previous prime is 210112431131. The next prime is 210112431149. The reversal of 210112431140 is 41134211012.

It is an interprime number because it is at equal distance from previous prime (210112431131) and next prime (210112431149).

It can be written as a sum of positive squares in 2 ways, for example, as 29757630016 + 180354801124 = 172504^2 + 424682^2 .

It is a super-2 number, since 2×210112431140² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 10505621557 = 210112431140 / (2 + 1 + 0 + 1 + 1 + 2 + 4 + 3 + 1 + 1 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (210112431149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5252810759 + ... + 5252810798.

It is an arithmetic number, because the mean of its divisors is an integer number (36769675453).

Almost surely, 2^210112431140 is an apocalyptic number.

210112431140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210112431140 is an abundant number, since it is smaller than the sum of its proper divisors (231123674296).

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

210112431140 is a wasteful number, since it uses less digits than its factorization.

210112431140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10505621566 (or 10505621564 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 210112431140 its reverse (41134211012), we get a palindrome (251246642152).

The spelling of 210112431140 in words is "two hundred ten billion, one hundred twelve million, four hundred thirty-one thousand, one hundred forty".