1123666610431 has 4 divisors (see below), whose sum is σ = 1123734534552. Its totient is φ = 1123598686312.

The previous prime is 1123666610399. The next prime is 1123666610447. The reversal of 1123666610431 is 1340166663211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1123666610431 - 2⁵ = 1123666610399 is a prime.

It is a super-2 number, since 2×1123666610431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123666610531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33937240 + ... + 33970333.

It is an arithmetic number, because the mean of its divisors is an integer number (280933633638).

Almost surely, 2^{1123666610431} is an apocalyptic number.

1123666610431 is a deficient number, since it is larger than the sum of its proper divisors (67924121).

1123666610431 is an equidigital number, since it uses as much as digits as its factorization.

1123666610431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67924120.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 1123666610431 in words is "one trillion, one hundred twenty-three billion, six hundred sixty-six million, six hundred ten thousand, four hundred thirty-one".