31031201303189 has 2 divisors, whose sum is σ = 31031201303190. Its totient is φ = 31031201303188.

The previous prime is 31031201303171. The next prime is 31031201303251. The reversal of 31031201303189 is 98130310213013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29450787752164 + 1580413551025 = 5426858^2 + 1257145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31031201303189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31031201303159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15515600651594 + 15515600651595.

It is an arithmetic number, because the mean of its divisors is an integer number (15515600651595).

Almost surely, 2^{31031201303189} is an apocalyptic number.

It is an amenable number.

31031201303189 is a deficient number, since it is larger than the sum of its proper divisors (1).

31031201303189 is an equidigital number, since it uses as much as digits as its factorization.

31031201303189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 31031201303189 in words is "thirty-one trillion, thirty-one billion, two hundred one million, three hundred three thousand, one hundred eighty-nine".