20131213330 has 32 divisors (see below), whose sum is σ = 37502922240. Its totient is φ = 7771243200.

The previous prime is 20131213321. The next prime is 20131213363. The reversal of 20131213330 is 3331213102.

It is a junction number, because it is equal to n+sod(n) for n = 20131213298 and 20131213307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 667027 + ... + 696553.

It is an arithmetic number, because the mean of its divisors is an integer number (1171966320).

Almost surely, 2^20131213330 is an apocalyptic number.

20131213330 is a deficient number, since it is larger than the sum of its proper divisors (17371708910).

20131213330 is a wasteful number, since it uses less digits than its factorization.

20131213330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31914.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20131213330 its reverse (3331213102), we get a palindrome (23462426432).

The spelling of 20131213330 in words is "twenty billion, one hundred thirty-one million, two hundred thirteen thousand, three hundred thirty".