501111141252 has 96 divisors (see below), whose sum is σ = 1292297110272. Its totient is φ = 150326009856.

The previous prime is 501111141241. The next prime is 501111141257. The reversal of 501111141252 is 252141111105.

It is a super-2 number, since 2×501111141252² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (501111141257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15528478 + ... + 15560714.

It is an arithmetic number, because the mean of its divisors is an integer number (13461428232).

Almost surely, 2^501111141252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501111141252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (646148555136).

501111141252 is an abundant number, since it is smaller than the sum of its proper divisors (791185969020).

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

501111141252 is a wasteful number, since it uses less digits than its factorization.

501111141252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35597 (or 35595 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 24.

Adding to 501111141252 its reverse (252141111105), we get a palindrome (753252252357).

The spelling of 501111141252 in words is "five hundred one billion, one hundred eleven million, one hundred forty-one thousand, two hundred fifty-two".