31540201501 has 2 divisors, whose sum is σ = 31540201502. Its totient is φ = 31540201500.

The previous prime is 31540201493. The next prime is 31540201531. The reversal of 31540201501 is 10510204513.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31460116900 + 80084601 = 177370^2 + 8949^2 .

It is an emirp because it is prime and its reverse (10510204513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31540201501 - 2³ = 31540201493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31540201531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15770100750 + 15770100751.

It is an arithmetic number, because the mean of its divisors is an integer number (15770100751).

Almost surely, 2^31540201501 is an apocalyptic number.

It is an amenable number.

31540201501 is a deficient number, since it is larger than the sum of its proper divisors (1).

31540201501 is an equidigital number, since it uses as much as digits as its factorization.

31540201501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 22.

The spelling of 31540201501 in words is "thirty-one billion, five hundred forty million, two hundred one thousand, five hundred one".