11125123401 has 16 divisors (see below), whose sum is σ = 17074534400. Its totient is φ = 6311476368.

The previous prime is 11125123397. The next prime is 11125123403. The reversal of 11125123401 is 10432152111.

It is not a de Polignac number, because 11125123401 - 2² = 11125123397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11125123403) 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, 1902721 + ... + 1908558.

It is an arithmetic number, because the mean of its divisors is an integer number (1067158400).

Almost surely, 2^11125123401 is an apocalyptic number.

It is an amenable number.

11125123401 is a deficient number, since it is larger than the sum of its proper divisors (5949410999).

11125123401 is a wasteful number, since it uses less digits than its factorization.

11125123401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811428.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 11125123401 its reverse (10432152111), we get a palindrome (21557275512).

The spelling of 11125123401 in words is "eleven billion, one hundred twenty-five million, one hundred twenty-three thousand, four hundred one".