1012023129 has 16 divisors (see below), whose sum is σ = 1484082432. Its totient is φ = 609531648.

The previous prime is 1012023127. The next prime is 1012023139. The reversal of 1012023129 is 9213202101.

It is not a de Polignac number, because 1012023129 - 2¹ = 1012023127 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012023127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274224 + ... + 277889.

It is an arithmetic number, because the mean of its divisors is an integer number (92755152).

Almost surely, 2^1012023129 is an apocalyptic number.

It is an amenable number.

1012023129 is a deficient number, since it is larger than the sum of its proper divisors (472059303).

1012023129 is a wasteful number, since it uses less digits than its factorization.

1012023129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552176.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1012023129 is about 31812.3109660395. The cubic root of 1012023129 is about 1003.9917543621.

The spelling of 1012023129 in words is "one billion, twelve million, twenty-three thousand, one hundred twenty-nine".