23802139132 has 12 divisors (see below), whose sum is σ = 41665971816. Its totient is φ = 11897575760.

The previous prime is 23802139091. The next prime is 23802139147. The reversal of 23802139132 is 23193120832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858094 + ... + 885397.

It is an arithmetic number, because the mean of its divisors is an integer number (3472164318).

Almost surely, 2^23802139132 is an apocalyptic number.

It is an amenable number.

23802139132 is a deficient number, since it is larger than the sum of its proper divisors (17863832684).

23802139132 is a wasteful number, since it uses less digits than its factorization.

23802139132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746908 (or 1746906 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

Adding to 23802139132 its reverse (23193120832), we get a palindrome (46995259964).

The spelling of 23802139132 in words is "twenty-three billion, eight hundred two million, one hundred thirty-nine thousand, one hundred thirty-two".