131223011120 has 40 divisors (see below), whose sum is σ = 311584860864. Its totient is φ = 51372411392.

The previous prime is 131223011081. The next prime is 131223011123. The reversal of 131223011120 is 21110322131.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (131223011123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17446109 + ... + 17453628.

Almost surely, 2^131223011120 is an apocalyptic number.

131223011120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131223011120 is an abundant number, since it is smaller than the sum of its proper divisors (180361849744).

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

131223011120 is a wasteful number, since it uses less digits than its factorization.

131223011120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34899797 (or 34899791 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 131223011120 its reverse (21110322131), we get a palindrome (152333333251).

The spelling of 131223011120 in words is "one hundred thirty-one billion, two hundred twenty-three million, eleven thousand, one hundred twenty".