1131022123 has 8 divisors (see below), whose sum is σ = 1410105600. Its totient is φ = 881315880.

The previous prime is 1131022111. The next prime is 1131022133. The reversal of 1131022123 is 3212201311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131022123 is a prime.

It is a super-2 number, since 2×1131022123² = 2558422085430854258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131022097 and 1131022106.

It is not an unprimeable number, because it can be changed into a prime (1131022133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7344223 + ... + 7344376.

It is an arithmetic number, because the mean of its divisors is an integer number (176263200).

Almost surely, 2^1131022123 is an apocalyptic number.

1131022123 is a deficient number, since it is larger than the sum of its proper divisors (279083477).

1131022123 is a wasteful number, since it uses less digits than its factorization.

1131022123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14688617.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1131022123 is about 33630.6723542661. The cubic root of 1131022123 is about 1041.8943908424.

Adding to 1131022123 its reverse (3212201311), we get a palindrome (4343223434).

It can be divided in two parts, 11310 and 22123, that added together give a palindrome (33433).

The spelling of 1131022123 in words is "one billion, one hundred thirty-one million, twenty-two thousand, one hundred twenty-three".