1229124123 has 12 divisors (see below), whose sum is σ = 1879837128. Its totient is φ = 771215040.

The previous prime is 1229124103. The next prime is 1229124187. The reversal of 1229124123 is 3214219221.

It is not a de Polignac number, because 1229124123 - 2²⁴ = 1212346907 is a prime.

It is a super-2 number, since 2×1229124123² = 3021492219481038258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1229124103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4016593 + ... + 4016898.

It is an arithmetic number, because the mean of its divisors is an integer number (156653094).

Almost surely, 2^1229124123 is an apocalyptic number.

1229124123 is a deficient number, since it is larger than the sum of its proper divisors (650713005).

1229124123 is a wasteful number, since it uses less digits than its factorization.

1229124123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8033514 (or 8033511 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1229124123 is about 35058.8665390084. The cubic root of 1229124123 is about 1071.1868865990.

The spelling of 1229124123 in words is "one billion, two hundred twenty-nine million, one hundred twenty-four thousand, one hundred twenty-three".