31240300123 has 8 divisors (see below), whose sum is σ = 31643974080. Its totient is φ = 30836832000.

The previous prime is 31240300103. The next prime is 31240300151. The reversal of 31240300123 is 32100304213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31240300123 is a prime.

It is a super-2 number, since 2×31240300123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31240300123.

It is not an unprimeable number, because it can be changed into a prime (31240300103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266661 + ... + 365497.

It is an arithmetic number, because the mean of its divisors is an integer number (3955496760).

Almost surely, 2^31240300123 is an apocalyptic number.

31240300123 is a deficient number, since it is larger than the sum of its proper divisors (403673957).

31240300123 is an equidigital number, since it uses as much as digits as its factorization.

31240300123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102917.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31240300123 its reverse (32100304213), we get a palindrome (63340604336).

The spelling of 31240300123 in words is "thirty-one billion, two hundred forty million, three hundred thousand, one hundred twenty-three".