20131233113030 has 16 divisors (see below), whose sum is σ = 39023621111664. Its totient is φ = 7433070687840.

The previous prime is 20131233113029. The next prime is 20131233113039. The reversal of 20131233113030 is 3031133213102.

It is a junction number, because it is equal to n+sod(n) for n = 20131233112987 and 20131233113005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131233113039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77427819536 + ... + 77427819795.

It is an arithmetic number, because the mean of its divisors is an integer number (2438976319479).

Almost surely, 2^{20131233113030} is an apocalyptic number.

20131233113030 is a deficient number, since it is larger than the sum of its proper divisors (18892387998634).

20131233113030 is a wasteful number, since it uses less digits than its factorization.

20131233113030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154855639351.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 20131233113030 its reverse (3031133213102), we get a palindrome (23162366326132).

The spelling of 20131233113030 in words is "twenty trillion, one hundred thirty-one billion, two hundred thirty-three million, one hundred thirteen thousand, thirty".