31230012127 has 2 divisors, whose sum is σ = 31230012128. Its totient is φ = 31230012126.

The previous prime is 31230012113. The next prime is 31230012139. The reversal of 31230012127 is 72121003213.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31230012127 - 2⁷ = 31230011999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31230012098 and 31230012107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31230012727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15615006063 + 15615006064.

It is an arithmetic number, because the mean of its divisors is an integer number (15615006064).

Almost surely, 2^31230012127 is an apocalyptic number.

31230012127 is a deficient number, since it is larger than the sum of its proper divisors (1).

31230012127 is an equidigital number, since it uses as much as digits as its factorization.

31230012127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The spelling of 31230012127 in words is "thirty-one billion, two hundred thirty million, twelve thousand, one hundred twenty-seven".