1213131113310 has 32 divisors (see below), whose sum is σ = 2932766613792. Its totient is φ = 321140303360.

The previous prime is 1213131113281. The next prime is 1213131113321. The reversal of 1213131113310 is 133111313121.

It is a super-2 number, since 2×1213131113310² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147578751 + ... + 147586970.

It is an arithmetic number, because the mean of its divisors is an integer number (91648956681).

Almost surely, 2^{1213131113310} is an apocalyptic number.

1213131113310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213131113310 is an abundant number, since it is smaller than the sum of its proper divisors (1719635500482).

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

1213131113310 is a wasteful number, since it uses less digits than its factorization.

1213131113310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295165868.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 1213131113310 its reverse (133111313121), we get a palindrome (1346242426431).

The spelling of 1213131113310 in words is "one trillion, two hundred thirteen billion, one hundred thirty-one million, one hundred thirteen thousand, three hundred ten".