31004322149 has 2 divisors, whose sum is σ = 31004322150. Its totient is φ = 31004322148.

The previous prime is 31004322133. The next prime is 31004322191. The reversal of 31004322149 is 94122340013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30666313924 + 338008225 = 175118^2 + 18385^2 .

It is a cyclic number.

It is not a de Polignac number, because 31004322149 - 2⁴ = 31004322133 is a prime.

It is a super-2 number, since 2×31004322149² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31004322109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15502161074 + 15502161075.

It is an arithmetic number, because the mean of its divisors is an integer number (15502161075).

Almost surely, 2^31004322149 is an apocalyptic number.

It is an amenable number.

31004322149 is a deficient number, since it is larger than the sum of its proper divisors (1).

31004322149 is an equidigital number, since it uses as much as digits as its factorization.

31004322149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 31004322149 in words is "thirty-one billion, four million, three hundred twenty-two thousand, one hundred forty-nine".