11413021123 has 16 divisors (see below), whose sum is σ = 13081720320. Its totient is φ = 9753938496.

The previous prime is 11413021117. The next prime is 11413021159. The reversal of 11413021123 is 32112031411.

It is a cyclic number.

It is not a de Polignac number, because 11413021123 - 2⁵ = 11413021091 is a prime.

It is a super-2 number, since 2×11413021123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11413021123.

It is not an unprimeable number, because it can be changed into a prime (11413021523) 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, 4613815 + ... + 4616287.

It is an arithmetic number, because the mean of its divisors is an integer number (817607520).

Almost surely, 2^11413021123 is an apocalyptic number.

11413021123 is a deficient number, since it is larger than the sum of its proper divisors (1668699197).

11413021123 is a wasteful number, since it uses less digits than its factorization.

11413021123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4146.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11413021123 its reverse (32112031411), we get a palindrome (43525052534).

The spelling of 11413021123 in words is "eleven billion, four hundred thirteen million, twenty-one thousand, one hundred twenty-three".