2331400221031 has 4 divisors (see below), whose sum is σ = 2664457395472. Its totient is φ = 1998343046592.

The previous prime is 2331400220999. The next prime is 2331400221053. The reversal of 2331400221031 is 1301220041332.

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 2331400221031 - 2⁵ = 2331400220999 is a prime.

It is a super-2 number, since 2×2331400221031² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2331400220993 and 2331400221011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331400221061) 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 in 3 ways as a sum of consecutive naturals, for example, 166528587210 + ... + 166528587223.

It is an arithmetic number, because the mean of its divisors is an integer number (666114348868).

Almost surely, 2^{2331400221031} is an apocalyptic number.

2331400221031 is a deficient number, since it is larger than the sum of its proper divisors (333057174441).

2331400221031 is an equidigital number, since it uses as much as digits as its factorization.

2331400221031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333057174440.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2331400221031 its reverse (1301220041332), we get a palindrome (3632620262363).

The spelling of 2331400221031 in words is "two trillion, three hundred thirty-one billion, four hundred million, two hundred twenty-one thousand, thirty-one".