31143000013132 has 48 divisors (see below), whose sum is σ = 63612061083648. Its totient is φ = 13062851449920.

The previous prime is 31143000012989. The next prime is 31143000013211. The reversal of 31143000013132 is 23131000034113.

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, 202267257 + ... + 202421167.

It is an arithmetic number, because the mean of its divisors is an integer number (1325251272576).

Almost surely, 2^{31143000013132} is an apocalyptic number.

It is an amenable number.

31143000013132 is an abundant number, since it is smaller than the sum of its proper divisors (32469061070516).

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

31143000013132 is a wasteful number, since it uses less digits than its factorization.

31143000013132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307726 (or 307724 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31143000013132 its reverse (23131000034113), we get a palindrome (54274000047245).

The spelling of 31143000013132 in words is "thirty-one trillion, one hundred forty-three billion, thirteen thousand, one hundred thirty-two".