11131430036 has 12 divisors (see below), whose sum is σ = 19550329428. Its totient is φ = 5545621632.

The previous prime is 11131430021. The next prime is 11131430087. The reversal of 11131430036 is 63003413111.

It can be written as a sum of positive squares in 2 ways, for example, as 4960384900 + 6171045136 = 70430^2 + 78556^2 .

It is a super-2 number, since 2×11131430036² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11131429993 and 11131430020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5022101 + ... + 5024316.

It is an arithmetic number, because the mean of its divisors is an integer number (1629194119).

Almost surely, 2^11131430036 is an apocalyptic number.

It is an amenable number.

11131430036 is a deficient number, since it is larger than the sum of its proper divisors (8418899392).

11131430036 is a wasteful number, since it uses less digits than its factorization.

11131430036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10046698 (or 10046696 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 11131430036 its reverse (63003413111), we get a palindrome (74134843147).

The spelling of 11131430036 in words is "eleven billion, one hundred thirty-one million, four hundred thirty thousand, thirty-six".