2231324402 has 4 divisors (see below), whose sum is σ = 3346986606. Its totient is φ = 1115662200.

The previous prime is 2231324377. The next prime is 2231324423. The reversal of 2231324402 is 2044231322.

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

It can be written as a sum of positive squares in only one way, i.e., 2201392561 + 29931841 = 46919^2 + 5471^2 .

It is a super-3 number, since 3×2231324402³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 557831099 + ... + 557831102.

Almost surely, 2^2231324402 is an apocalyptic number.

2231324402 is a deficient number, since it is larger than the sum of its proper divisors (1115662204).

2231324402 is a wasteful number, since it uses less digits than its factorization.

2231324402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115662203.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2231324402 is about 47236.8966169455. The cubic root of 2231324402 is about 1306.7351447724.

Adding to 2231324402 its reverse (2044231322), we get a palindrome (4275555724).

The spelling of 2231324402 in words is "two billion, two hundred thirty-one million, three hundred twenty-four thousand, four hundred two".