2142321631 has 2 divisors, whose sum is σ = 2142321632. Its totient is φ = 2142321630.

The previous prime is 2142321593. The next prime is 2142321641. The reversal of 2142321631 is 1361232412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2142321631 - 2²¹ = 2140224479 is a prime.

It is a super-2 number, since 2×2142321631² = 9179083941301000322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2142321596 and 2142321605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2142321641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071160815 + 1071160816.

It is an arithmetic number, because the mean of its divisors is an integer number (1071160816).

Almost surely, 2^2142321631 is an apocalyptic number.

2142321631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142321631 is an equidigital number, since it uses as much as digits as its factorization.

2142321631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 2142321631 is about 46285.2204380621. The cubic root of 2142321631 is about 1289.1245850392.

The spelling of 2142321631 in words is "two billion, one hundred forty-two million, three hundred twenty-one thousand, six hundred thirty-one".