11012331123 has 24 divisors (see below), whose sum is σ = 16242431088. Its totient is φ = 7188072192.

The previous prime is 11012331107. The next prime is 11012331151. The reversal of 11012331123 is 32113321011.

It is not a de Polignac number, because 11012331123 - 2⁴ = 11012331107 is a prime.

It is a super-2 number, since 2×11012331123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11012331096 and 11012331105.

It is not an unprimeable number, because it can be changed into a prime (11012330123) 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, 28836 + ... + 151182.

It is an arithmetic number, because the mean of its divisors is an integer number (676767962).

Almost surely, 2^11012331123 is an apocalyptic number.

11012331123 is a deficient number, since it is larger than the sum of its proper divisors (5230099965).

11012331123 is a wasteful number, since it uses less digits than its factorization.

11012331123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122563 (or 122560 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11012331123 its reverse (32113321011), we get a palindrome (43125652134).

It can be divided in two parts, 110123 and 31123, that added together give a triangular number (141246 = T₅₃₁).

The spelling of 11012331123 in words is "eleven billion, twelve million, three hundred thirty-one thousand, one hundred twenty-three".