31435123010149 has 2 divisors, whose sum is σ = 31435123010150. Its totient is φ = 31435123010148.

The previous prime is 31435123010131. The next prime is 31435123010177. The reversal of 31435123010149 is 94101032153413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28677470868225 + 2757652141924 = 5355135^2 + 1660618^2 .

It is a cyclic number.

It is not a de Polignac number, because 31435123010149 - 2¹¹ = 31435123008101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31435123010549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15717561505074 + 15717561505075.

It is an arithmetic number, because the mean of its divisors is an integer number (15717561505075).

Almost surely, 2^{31435123010149} is an apocalyptic number.

It is an amenable number.

31435123010149 is a deficient number, since it is larger than the sum of its proper divisors (1).

31435123010149 is an equidigital number, since it uses as much as digits as its factorization.

31435123010149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 31435123010149 in words is "thirty-one trillion, four hundred thirty-five billion, one hundred twenty-three million, ten thousand, one hundred forty-nine".