31242010147 has 2 divisors, whose sum is σ = 31242010148. Its totient is φ = 31242010146.

The previous prime is 31242010139. The next prime is 31242010159. The reversal of 31242010147 is 74101024213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31242010147 - 2³ = 31242010139 is a prime.

It is not a weakly prime, because it can be changed into another prime (31242011147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15621005073 + 15621005074.

It is an arithmetic number, because the mean of its divisors is an integer number (15621005074).

Almost surely, 2^31242010147 is an apocalyptic number.

31242010147 is a deficient number, since it is larger than the sum of its proper divisors (1).

31242010147 is an equidigital number, since it uses as much as digits as its factorization.

31242010147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The spelling of 31242010147 in words is "thirty-one billion, two hundred forty-two million, ten thousand, one hundred forty-seven".