20400233444132 has 48 divisors (see below), whose sum is σ = 37295930165760. Its totient is φ = 9745289693568.

The previous prime is 20400233444093. The next prime is 20400233444137. The reversal of 20400233444132 is 23144433200402.

It is not an unprimeable number, because it can be changed into a prime (20400233444137) 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, 431553794 + ... + 431601062.

It is an arithmetic number, because the mean of its divisors is an integer number (776998545120).

Almost surely, 2^{20400233444132} is an apocalyptic number.

It is an amenable number.

20400233444132 is a deficient number, since it is larger than the sum of its proper divisors (16895696721628).

20400233444132 is a wasteful number, since it uses less digits than its factorization.

20400233444132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52652 (or 52650 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 20400233444132 its reverse (23144433200402), we get a palindrome (43544666644534).

The spelling of 20400233444132 in words is "twenty trillion, four hundred billion, two hundred thirty-three million, four hundred forty-four thousand, one hundred thirty-two".