131501235352040 has 64 divisors (see below), whose sum is σ = 296140667198400. Its totient is φ = 52553779241472.

The previous prime is 131501235351949. The next prime is 131501235352093. The reversal of 131501235352040 is 40253532105131.

It is a happy number.

It is a super-2 number, since 2×131501235352040² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204562964 + ... + 205204796.

It is an arithmetic number, because the mean of its divisors is an integer number (4627197924975).

Almost surely, 2^{131501235352040} is an apocalyptic number.

131501235352040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131501235352040 is an abundant number, since it is smaller than the sum of its proper divisors (164639431846360).

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

131501235352040 is a wasteful number, since it uses less digits than its factorization.

131501235352040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646386 (or 646382 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 131501235352040 its reverse (40253532105131), we get a palindrome (171754767457171).

The spelling of 131501235352040 in words is "one hundred thirty-one trillion, five hundred one billion, two hundred thirty-five million, three hundred fifty-two thousand, forty".