1111030021131 has 16 divisors (see below), whose sum is σ = 1581889244160. Its totient is φ = 692076540960.

The previous prime is 1111030021117. The next prime is 1111030021183. The reversal of 1111030021131 is 1311200301111.

It is not a de Polignac number, because 1111030021131 - 2⁵ = 1111030021099 is a prime.

It is a super-2 number, since 2×1111030021131² (a number of 25 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 1111030021131.

It is not an unprimeable number, because it can be changed into a prime (1111030021531) 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, 205972465 + ... + 205977858.

It is an arithmetic number, because the mean of its divisors is an integer number (98868077760).

Almost surely, 2^{1111030021131} is an apocalyptic number.

1111030021131 is a deficient number, since it is larger than the sum of its proper divisors (470859223029).

1111030021131 is a wasteful number, since it uses less digits than its factorization.

1111030021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411950386.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 1111030021131 its reverse (1311200301111), we get a palindrome (2422230322242).

The spelling of 1111030021131 in words is "one trillion, one hundred eleven billion, thirty million, twenty-one thousand, one hundred thirty-one".