11611402123 has 24 divisors (see below), whose sum is σ = 12303168192. Its totient is φ = 10952492544.

The previous prime is 11611402111. The next prime is 11611402141. The reversal of 11611402123 is 32120411611.

It is not a de Polignac number, because 11611402123 - 2⁵ = 11611402091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11611402094 and 11611402103.

It is not an unprimeable number, because it can be changed into a prime (11611402183) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7269961 + ... + 7271557.

It is an arithmetic number, because the mean of its divisors is an integer number (512632008).

Almost surely, 2^11611402123 is an apocalyptic number.

11611402123 is a deficient number, since it is larger than the sum of its proper divisors (691766069).

11611402123 is a wasteful number, since it uses less digits than its factorization.

11611402123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831 (or 1794 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 11611402123 its reverse (32120411611), we get a palindrome (43731813734).

The spelling of 11611402123 in words is "eleven billion, six hundred eleven million, four hundred two thousand, one hundred twenty-three".