31431342124130 has 32 divisors (see below), whose sum is σ = 64512474156144. Its totient is φ = 10922746945536.

The previous prime is 31431342124103. The next prime is 31431342124153. The reversal of 31431342124130 is 3142124313413.

It can be written as a sum of positive squares in 8 ways, for example, as 11910029090281 + 19521313033849 = 3451091^2 + 4418293^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7111161167 + ... + 7111165586.

Almost surely, 2^{31431342124130} is an apocalyptic number.

31431342124130 is an abundant number, since it is smaller than the sum of its proper divisors (33081132032014).

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

31431342124130 is a wasteful number, since it uses less digits than its factorization.

31431342124130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14222326790.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 31431342124130 its reverse (3142124313413), we get a palindrome (34573466437543).

The spelling of 31431342124130 in words is "thirty-one trillion, four hundred thirty-one billion, three hundred forty-two million, one hundred twenty-four thousand, one hundred thirty".