13132112021 has 8 divisors (see below), whose sum is σ = 15525649920. Its totient is φ = 10867954608.

The previous prime is 13132111987. The next prime is 13132112023. The reversal of 13132112021 is 12021123131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-13132112021 is a prime.

It is a super-2 number, since 2×13132112021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13132112023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32344901 + ... + 32345306.

It is an arithmetic number, because the mean of its divisors is an integer number (1940706240).

Almost surely, 2^13132112021 is an apocalyptic number.

It is an amenable number.

13132112021 is a deficient number, since it is larger than the sum of its proper divisors (2393537899).

13132112021 is an equidigital number, since it uses as much as digits as its factorization.

13132112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64690243.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13132112021 its reverse (12021123131), we get a palindrome (25153235152).

The spelling of 13132112021 in words is "thirteen billion, one hundred thirty-two million, one hundred twelve thousand, twenty-one".