1021513231132 has 24 divisors (see below), whose sum is σ = 1895891777136. Its totient is φ = 479927893248.

The previous prime is 1021513231099. The next prime is 1021513231153. The reversal of 1021513231132 is 2311323151201.

It is a junction number, because it is equal to n+sod(n) for n = 1021513231097 and 1021513231106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12211378 + ... + 12294745.

It is an arithmetic number, because the mean of its divisors is an integer number (78995490714).

Almost surely, 2^{1021513231132} is an apocalyptic number.

It is an amenable number.

1021513231132 is a deficient number, since it is larger than the sum of its proper divisors (874378546004).

1021513231132 is a wasteful number, since it uses less digits than its factorization.

1021513231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24506757 (or 24506755 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 1021513231132 its reverse (2311323151201), we get a palindrome (3332836382333).

The spelling of 1021513231132 in words is "one trillion, twenty-one billion, five hundred thirteen million, two hundred thirty-one thousand, one hundred thirty-two".