131435333240 has 32 divisors (see below), whose sum is σ = 295790184000. Its totient is φ = 52563345024.

The previous prime is 131435333219. The next prime is 131435333257. The reversal of 131435333240 is 42333534131.

It is a junction number, because it is equal to n+sod(n) for n = 131435333197 and 131435333206.

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, 138320 + ... + 531039.

It is an arithmetic number, because the mean of its divisors is an integer number (9243443250).

Almost surely, 2^131435333240 is an apocalyptic number.

131435333240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131435333240 is an abundant number, since it is smaller than the sum of its proper divisors (164354850760).

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

131435333240 is a wasteful number, since it uses less digits than its factorization.

131435333240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674279 (or 674275 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 32.

Adding to 131435333240 its reverse (42333534131), we get a palindrome (173768867371).

The spelling of 131435333240 in words is "one hundred thirty-one billion, four hundred thirty-five million, three hundred thirty-three thousand, two hundred forty".