3172199691911 has 2 divisors, whose sum is σ = 3172199691912. Its totient is φ = 3172199691910.

The previous prime is 3172199691901. The next prime is 3172199691923. The reversal of 3172199691911 is 1191969912713.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3172199691911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3172199691901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1586099845955 + 1586099845956.

It is an arithmetic number, because the mean of its divisors is an integer number (1586099845956).

Almost surely, 2^{3172199691911} is an apocalyptic number.

3172199691911 is a deficient number, since it is larger than the sum of its proper divisors (1).

3172199691911 is an equidigital number, since it uses as much as digits as its factorization.

3172199691911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1653372, while the sum is 59.

The spelling of 3172199691911 in words is "three trillion, one hundred seventy-two billion, one hundred ninety-nine million, six hundred ninety-one thousand, nine hundred eleven".