31672272001 has 2 divisors, whose sum is σ = 31672272002. Its totient is φ = 31672272000.

The previous prime is 31672271933. The next prime is 31672272017. The reversal of 31672272001 is 10027227613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23347534401 + 8324737600 = 152799^2 + 91240^2 .

It is a cyclic number.

It is not a de Polignac number, because 31672272001 - 2¹¹ = 31672269953 is a prime.

It is not a weakly prime, because it can be changed into another prime (31672272031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15836136000 + 15836136001.

It is an arithmetic number, because the mean of its divisors is an integer number (15836136001).

Almost surely, 2^31672272001 is an apocalyptic number.

It is an amenable number.

31672272001 is a deficient number, since it is larger than the sum of its proper divisors (1).

31672272001 is an equidigital number, since it uses as much as digits as its factorization.

31672272001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

Adding to 31672272001 its reverse (10027227613), we get a palindrome (41699499614).

The spelling of 31672272001 in words is "thirty-one billion, six hundred seventy-two million, two hundred seventy-two thousand, one".