31542412303 has 4 divisors (see below), whose sum is σ = 31896821520. Its totient is φ = 31188003088.

The previous prime is 31542412283. The next prime is 31542412333. The reversal of 31542412303 is 30321424513.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31542412303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31542412333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177204475 + ... + 177204652.

It is an arithmetic number, because the mean of its divisors is an integer number (7974205380).

Almost surely, 2^31542412303 is an apocalyptic number.

31542412303 is a deficient number, since it is larger than the sum of its proper divisors (354409217).

31542412303 is an equidigital number, since it uses as much as digits as its factorization.

31542412303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354409216.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 31542412303 its reverse (30321424513), we get a palindrome (61863836816).

The spelling of 31542412303 in words is "thirty-one billion, five hundred forty-two million, four hundred twelve thousand, three hundred three".