20631124352 has 16 divisors (see below), whose sum is σ = 41101068300. Its totient is φ = 10315562112.

The previous prime is 20631124271. The next prime is 20631124357. The reversal of 20631124352 is 25342113602.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20631124357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80590202 + ... + 80590457.

Almost surely, 2^20631124352 is an apocalyptic number.

It is an amenable number.

20631124352 is a deficient number, since it is larger than the sum of its proper divisors (20469943948).

20631124352 is an equidigital number, since it uses as much as digits as its factorization.

20631124352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161180673 (or 161180661 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 20631124352 its reverse (25342113602), we get a palindrome (45973237954).

The spelling of 20631124352 in words is "twenty billion, six hundred thirty-one million, one hundred twenty-four thousand, three hundred fifty-two".