11421103131 has 48 divisors (see below), whose sum is σ = 17406244128. Its totient is φ = 7206796800.

The previous prime is 11421103087. The next prime is 11421103163. The reversal of 11421103131 is 13130112411.

It is a happy number.

11421103131 is a `hidden beast` number, since 11 + 421 + 103 + 131 = 666.

It is not a de Polignac number, because 11421103131 - 2⁹ = 11421102619 is a prime.

It is a super-2 number, since 2×11421103131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11421143131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5746920 + ... + 5748906.

It is an arithmetic number, because the mean of its divisors is an integer number (362630086).

Almost surely, 2^11421103131 is an apocalyptic number.

11421103131 is a deficient number, since it is larger than the sum of its proper divisors (5985140997).

11421103131 is a wasteful number, since it uses less digits than its factorization.

11421103131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492 (or 2489 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 11421103131 its reverse (13130112411), we get a palindrome (24551215542).

The spelling of 11421103131 in words is "eleven billion, four hundred twenty-one million, one hundred three thousand, one hundred thirty-one".