32131444021031 has 4 divisors (see below), whose sum is σ = 32131583533992. Its totient is φ = 32131304508072.

The previous prime is 32131444021013. The next prime is 32131444021043. The reversal of 32131444021031 is 13012044413123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32131444021031 is a prime.

It is a super-2 number, since 2×32131444021031² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32131444020985 and 32131444021003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32131444021081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69410441 + ... + 69871826.

It is an arithmetic number, because the mean of its divisors is an integer number (8032895883498).

Almost surely, 2^{32131444021031} is an apocalyptic number.

32131444021031 is a deficient number, since it is larger than the sum of its proper divisors (139512961).

32131444021031 is a wasteful number, since it uses less digits than its factorization.

32131444021031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139512960.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 32131444021031 its reverse (13012044413123), we get a palindrome (45143488434154).

The spelling of 32131444021031 in words is "thirty-two trillion, one hundred thirty-one billion, four hundred forty-four million, twenty-one thousand, thirty-one".