31323179801 has 2 divisors, whose sum is σ = 31323179802. Its totient is φ = 31323179800.

The previous prime is 31323179759. The next prime is 31323179843. The reversal of 31323179801 is 10897132313.

It is a balanced prime because it is at equal distance from previous prime (31323179759) and next prime (31323179843).

It can be written as a sum of positive squares in only one way, i.e., 24346921225 + 6976258576 = 156035^2 + 83524^2 .

It is a cyclic number.

It is not a de Polignac number, because 31323179801 - 2²² = 31318985497 is a prime.

It is a super-2 number, since 2×31323179801² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31343179801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661589900 + 15661589901.

It is an arithmetic number, because the mean of its divisors is an integer number (15661589901).

Almost surely, 2^31323179801 is an apocalyptic number.

It is an amenable number.

31323179801 is a deficient number, since it is larger than the sum of its proper divisors (1).

31323179801 is an equidigital number, since it uses as much as digits as its factorization.

31323179801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 31323179801 in words is "thirty-one billion, three hundred twenty-three million, one hundred seventy-nine thousand, eight hundred one".