505121330131540 has 96 divisors (see below), whose sum is σ = 1082440436128128. Its totient is φ = 197945270208000.

The previous prime is 505121330131427. The next prime is 505121330131571. The reversal of 505121330131540 is 45131033121505.

It is a junction number, because it is equal to n+sod(n) for n = 505121330131496 and 505121330131505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 516751455 + ... + 517728025.

It is an arithmetic number, because the mean of its divisors is an integer number (11275421209668).

Almost surely, 2^{505121330131540} is an apocalyptic number.

It is an amenable number.

505121330131540 is an abundant number, since it is smaller than the sum of its proper divisors (577319105996588).

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

505121330131540 is a wasteful number, since it uses less digits than its factorization.

505121330131540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978329 (or 978327 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 505121330131540 in words is "five hundred five trillion, one hundred twenty-one billion, three hundred thirty million, one hundred thirty-one thousand, five hundred forty".