23231142402 has 32 divisors (see below), whose sum is σ = 50083293120. Its totient is φ = 7141331520.

The previous prime is 23231142397. The next prime is 23231142409. The reversal of 23231142402 is 20424113232.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23231142409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55924 + ... + 222687.

It is an arithmetic number, because the mean of its divisors is an integer number (1565102910).

Almost surely, 2^23231142402 is an apocalyptic number.

23231142402 is an abundant number, since it is smaller than the sum of its proper divisors (26852150718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23231142402 is a wasteful number, since it uses less digits than its factorization.

23231142402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279698.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 23231142402 its reverse (20424113232), we get a palindrome (43655255634).

The spelling of 23231142402 in words is "twenty-three billion, two hundred thirty-one million, one hundred forty-two thousand, four hundred two".