131223034421240 has 16 divisors (see below), whose sum is σ = 295251827447880. Its totient is φ = 52489213768480.

The previous prime is 131223034421183. The next prime is 131223034421251. The reversal of 131223034421240 is 42124430322131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131223034421197 and 131223034421206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640287930226 + ... + 1640287930305.

Almost surely, 2^{131223034421240} is an apocalyptic number.

131223034421240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131223034421240 is an abundant number, since it is smaller than the sum of its proper divisors (164028793026640).

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

131223034421240 is a wasteful number, since it uses less digits than its factorization.

131223034421240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280575860542 (or 3280575860538 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 131223034421240 its reverse (42124430322131), we get a palindrome (173347464743371).

The spelling of 131223034421240 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, thirty-four million, four hundred twenty-one thousand, two hundred forty".