31404600329 has 2 divisors, whose sum is σ = 31404600330. Its totient is φ = 31404600328.

The previous prime is 31404600323. The next prime is 31404600341. The reversal of 31404600329 is 92300640413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19287654400 + 12116945929 = 138880^2 + 110077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31404600329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31404600295 and 31404600304.

It is not a weakly prime, because it can be changed into another prime (31404600323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15702300164 + 15702300165.

It is an arithmetic number, because the mean of its divisors is an integer number (15702300165).

Almost surely, 2^31404600329 is an apocalyptic number.

It is an amenable number.

31404600329 is a deficient number, since it is larger than the sum of its proper divisors (1).

31404600329 is an equidigital number, since it uses as much as digits as its factorization.

31404600329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 31404600329 in words is "thirty-one billion, four hundred four million, six hundred thousand, three hundred twenty-nine".