20131213310 has 16 divisors (see below), whose sum is σ = 39023582976. Its totient is φ = 7433063328.

The previous prime is 20131213303. The next prime is 20131213321. The reversal of 20131213310 is 1331213102.

It is a super-2 number, since 2×20131213310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77427614 + ... + 77427873.

It is an arithmetic number, because the mean of its divisors is an integer number (2438973936).

Almost surely, 2^20131213310 is an apocalyptic number.

20131213310 is a deficient number, since it is larger than the sum of its proper divisors (18892369666).

20131213310 is a wasteful number, since it uses less digits than its factorization.

20131213310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154855507.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20131213310 its reverse (1331213102), we get a palindrome (21462426412).

The spelling of 20131213310 in words is "twenty billion, one hundred thirty-one million, two hundred thirteen thousand, three hundred ten".