2321400031 has 24 divisors (see below), whose sum is σ = 2604997584. Its totient is φ = 2061192960.

The previous prime is 2321400013. The next prime is 2321400061. The reversal of 2321400031 is 1300041232.

It is a happy number.

It is not a de Polignac number, because 2321400031 - 2⁵ = 2321399999 is a prime.

It is a super-2 number, since 2×2321400031² = 10777796207853601922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2321399978 and 2321400014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321400061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1797496 + ... + 1798786.

It is an arithmetic number, because the mean of its divisors is an integer number (108541566).

Almost surely, 2^2321400031 is an apocalyptic number.

2321400031 is a deficient number, since it is larger than the sum of its proper divisors (283597553).

2321400031 is a wasteful number, since it uses less digits than its factorization.

2321400031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639 (or 1620 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2321400031 is about 48180.9094040368. The cubic root of 2321400031 is about 1324.0874278254.

Adding to 2321400031 its reverse (1300041232), we get a palindrome (3621441263).

The spelling of 2321400031 in words is "two billion, three hundred twenty-one million, four hundred thousand, thirty-one".