1231133220310 has 32 divisors (see below), whose sum is σ = 2535054612480. Its totient is φ = 421696534752.

The previous prime is 1231133220307. The next prime is 1231133220311. The reversal of 1231133220310 is 130223311321.

It is a super-2 number, since 2×1231133220310² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231133220311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8390994 + ... + 8536453.

It is an arithmetic number, because the mean of its divisors is an integer number (79220456640).

Almost surely, 2^{1231133220310} is an apocalyptic number.

1231133220310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231133220310 is an abundant number, since it is smaller than the sum of its proper divisors (1303921392170).

1231133220310 is a wasteful number, since it uses less digits than its factorization.

1231133220310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16928500.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1231133220310 its reverse (130223311321), we get a palindrome (1361356531631).

The spelling of 1231133220310 in words is "one trillion, two hundred thirty-one billion, one hundred thirty-three million, two hundred twenty thousand, three hundred ten".