20130233312 has 36 divisors (see below), whose sum is σ = 46101832560. Its totient is φ = 8627242176.

The previous prime is 20130233287. The next prime is 20130233317. The reversal of 20130233312 is 21333203102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130233317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6417512 + ... + 6420647.

It is an arithmetic number, because the mean of its divisors is an integer number (1280606460).

Almost surely, 2^20130233312 is an apocalyptic number.

It is an amenable number.

20130233312 is an abundant number, since it is smaller than the sum of its proper divisors (25971599248).

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

20130233312 is a wasteful number, since it uses less digits than its factorization.

20130233312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12838183 (or 12838168 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20130233312 its reverse (21333203102), we get a palindrome (41463436414).

The spelling of 20130233312 in words is "twenty billion, one hundred thirty million, two hundred thirty-three thousand, three hundred twelve".