1123132120131 has 32 divisors (see below), whose sum is σ = 1801601533440. Its totient is φ = 607982229504.

The previous prime is 1123132120091. The next prime is 1123132120163. The reversal of 1123132120131 is 1310212313211.

It is not a de Polignac number, because 1123132120131 - 2⁶ = 1123132120067 is a prime.

It is a super-2 number, since 2×1123132120131² (a number of 25 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1123132120098 and 1123132120107.

It is not an unprimeable number, because it can be changed into a prime (1123132120931) 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, 10236841 + ... + 10345973.

It is an arithmetic number, because the mean of its divisors is an integer number (56300047920).

Almost surely, 2^{1123132120131} is an apocalyptic number.

1123132120131 is a deficient number, since it is larger than the sum of its proper divisors (678469413309).

1123132120131 is a wasteful number, since it uses less digits than its factorization.

1123132120131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134955.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1123132120131 its reverse (1310212313211), we get a palindrome (2433344433342).

The spelling of 1123132120131 in words is "one trillion, one hundred twenty-three billion, one hundred thirty-two million, one hundred twenty thousand, one hundred thirty-one".