31112201147 has 2 divisors, whose sum is σ = 31112201148. Its totient is φ = 31112201146.

The previous prime is 31112201119. The next prime is 31112201161. The reversal of 31112201147 is 74110221113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31112201147 - 2⁸ = 31112200891 is a prime.

It is a super-2 number, since 2×31112201147² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31112201447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556100573 + 15556100574.

It is an arithmetic number, because the mean of its divisors is an integer number (15556100574).

Almost surely, 2^31112201147 is an apocalyptic number.

31112201147 is a deficient number, since it is larger than the sum of its proper divisors (1).

31112201147 is an equidigital number, since it uses as much as digits as its factorization.

31112201147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

The spelling of 31112201147 in words is "thirty-one billion, one hundred twelve million, two hundred one thousand, one hundred forty-seven".