11400120123 has 32 divisors (see below), whose sum is σ = 17468977152. Its totient is φ = 6477926400.

The previous prime is 11400120103. The next prime is 11400120133. The reversal of 11400120123 is 32102100411.

It is not a de Polignac number, because 11400120123 - 2¹² = 11400116027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11400120103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5014315 + ... + 5016587.

It is an arithmetic number, because the mean of its divisors is an integer number (545905536).

Almost surely, 2^11400120123 is an apocalyptic number.

11400120123 is a deficient number, since it is larger than the sum of its proper divisors (6068857029).

11400120123 is a wasteful number, since it uses less digits than its factorization.

11400120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11400120123 its reverse (32102100411), we get a palindrome (43502220534).

The spelling of 11400120123 in words is "eleven billion, four hundred million, one hundred twenty thousand, one hundred twenty-three".