501101011131 has 16 divisors (see below), whose sum is σ = 769594957824. Its totient is φ = 284088760704.

The previous prime is 501101011129. The next prime is 501101011217. The reversal of 501101011131 is 131110101105.

It is not a de Polignac number, because 501101011131 - 2¹ = 501101011129 is a prime.

It is a super-2 number, since 2×501101011131² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 501101011131.

It is not an unprimeable number, because it can be changed into a prime (501101010131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93942030 + ... + 93947363.

It is an arithmetic number, because the mean of its divisors is an integer number (48099684864).

Almost surely, 2^501101011131 is an apocalyptic number.

501101011131 is a deficient number, since it is larger than the sum of its proper divisors (268493946693).

501101011131 is a wasteful number, since it uses less digits than its factorization.

501101011131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187889530.

The product of its (nonzero) digits is 15, while the sum is 15.

Adding to 501101011131 its reverse (131110101105), we get a palindrome (632211112236).

The spelling of 501101011131 in words is "five hundred one billion, one hundred one million, eleven thousand, one hundred thirty-one".