1230122129 has 8 divisors (see below), whose sum is σ = 1270528512. Its totient is φ = 1189761120.

The previous prime is 1230122123. The next prime is 1230122141. The reversal of 1230122129 is 9212210321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1230122129 - 2¹² = 1230118033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230122123) 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, 48932 + ... + 69674.

It is an arithmetic number, because the mean of its divisors is an integer number (158816064).

Almost surely, 2^1230122129 is an apocalyptic number.

It is an amenable number.

1230122129 is a deficient number, since it is larger than the sum of its proper divisors (40406383).

1230122129 is a wasteful number, since it uses less digits than its factorization.

1230122129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22687.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1230122129 is about 35073.0969405326. The cubic root of 1230122129 is about 1071.4767303195.

The spelling of 1230122129 in words is "one billion, two hundred thirty million, one hundred twenty-two thousand, one hundred twenty-nine".