3131420023 has 4 divisors (see below), whose sum is σ = 3137042520. Its totient is φ = 3125797528.

The previous prime is 3131419999. The next prime is 3131420063. The reversal of 3131420023 is 3200241313.

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

It is a cyclic number.

It is not a de Polignac number, because 3131420023 - 2²¹ = 3129322871 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 (3131420063) 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, 2810413 + ... + 2811526.

It is an arithmetic number, because the mean of its divisors is an integer number (784260630).

Almost surely, 2^3131420023 is an apocalyptic number.

3131420023 is a deficient number, since it is larger than the sum of its proper divisors (5622497).

3131420023 is an equidigital number, since it uses as much as digits as its factorization.

3131420023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5622496.

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

The square root of 3131420023 is about 55959.0924068645. The cubic root of 3131420023 is about 1463.0093715327.

Adding to 3131420023 its reverse (3200241313), we get a palindrome (6331661336).

The spelling of 3131420023 in words is "three billion, one hundred thirty-one million, four hundred twenty thousand, twenty-three".