31633731142 has 32 divisors (see below), whose sum is σ = 53810265600. Its totient is φ = 13826580768.

The previous prime is 31633731133. The next prime is 31633731149. The reversal of 31633731142 is 24113733613.

It is a super-3 number, since 3×31633731142³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31633731098 and 31633731107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31633731149) 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, 1504659 + ... + 1525537.

It is an arithmetic number, because the mean of its divisors is an integer number (1681570800).

Almost surely, 2^31633731142 is an apocalyptic number.

31633731142 is a deficient number, since it is larger than the sum of its proper divisors (22176534458).

31633731142 is a wasteful number, since it uses less digits than its factorization.

31633731142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23980.

The product of its digits is 27216, while the sum is 34.

The spelling of 31633731142 in words is "thirty-one billion, six hundred thirty-three million, seven hundred thirty-one thousand, one hundred forty-two".