23311402 has 4 divisors (see below), whose sum is σ = 34967106. Its totient is φ = 11655700.

The previous prime is 23311367. The next prime is 23311427. The reversal of 23311402 is 20411332.

It is a happy number.

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., 22268961 + 1042441 = 4719^2 + 1021^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5827849 + ... + 5827852.

Almost surely, 2^23311402 is an apocalyptic number.

23311402 is a deficient number, since it is larger than the sum of its proper divisors (11655704).

23311402 is a wasteful number, since it uses less digits than its factorization.

23311402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11655703.

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

The square root of 23311402 is about 4828.1882730482. The cubic root of 23311402 is about 285.6644066023.

Adding to 23311402 its reverse (20411332), we get a palindrome (43722734).

The spelling of 23311402 in words is "twenty-three million, three hundred eleven thousand, four hundred two".