11312103155 has 16 divisors (see below), whose sum is σ = 13911930144. Its totient is φ = 8824945920.

The previous prime is 11312103151. The next prime is 11312103157. The reversal of 11312103155 is 55130121311.

It is not a de Polignac number, because 11312103155 - 2² = 11312103151 is a prime.

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 11312103155.

It is not an unprimeable number, because it can be changed into a prime (11312103151) 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, 488264 + ... + 510906.

It is an arithmetic number, because the mean of its divisors is an integer number (869495634).

Almost surely, 2^11312103155 is an apocalyptic number.

11312103155 is a deficient number, since it is larger than the sum of its proper divisors (2599826989).

11312103155 is a wasteful number, since it uses less digits than its factorization.

11312103155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25126.

The product of its (nonzero) digits is 450, while the sum is 23.

Adding to 11312103155 its reverse (55130121311), we get a palindrome (66442224466).

The spelling of 11312103155 in words is "eleven billion, three hundred twelve million, one hundred three thousand, one hundred fifty-five".