505031121236 has 12 divisors (see below), whose sum is σ = 888431712000. Its totient is φ = 251193489240.

The previous prime is 505031121233. The next prime is 505031121263. The reversal of 505031121236 is 632121130505.

It is a junction number, because it is equal to n+sod(n) for n = 505031121199 and 505031121208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505031121233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330516986 + ... + 330518513.

It is an arithmetic number, because the mean of its divisors is an integer number (74035976000).

Almost surely, 2^505031121236 is an apocalyptic number.

It is an amenable number.

505031121236 is a deficient number, since it is larger than the sum of its proper divisors (383400590764).

505031121236 is a wasteful number, since it uses less digits than its factorization.

505031121236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661035694 (or 661035692 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 505031121236 in words is "five hundred five billion, thirty-one million, one hundred twenty-one thousand, two hundred thirty-six".