1131874123 has 2 divisors, whose sum is σ = 1131874124. Its totient is φ = 1131874122.

The previous prime is 1131874097. The next prime is 1131874129. The reversal of 1131874123 is 3214781311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131874123 - 2¹⁷ = 1131743051 is a prime.

It is a super-2 number, since 2×1131874123² = 2562278060634038258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1131874129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565937061 + 565937062.

It is an arithmetic number, because the mean of its divisors is an integer number (565937062).

Almost surely, 2^1131874123 is an apocalyptic number.

1131874123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131874123 is an equidigital number, since it uses as much as digits as its factorization.

1131874123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The square root of 1131874123 is about 33643.3369777732. The cubic root of 1131874123 is about 1042.1559451763.

The spelling of 1131874123 in words is "one billion, one hundred thirty-one million, eight hundred seventy-four thousand, one hundred twenty-three".