1012133123 has 2 divisors, whose sum is σ = 1012133124. Its totient is φ = 1012133122.

The previous prime is 1012133107. The next prime is 1012133149. The reversal of 1012133123 is 3213312101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012133123 - 2⁴ = 1012133107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1012133323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506066561 + 506066562.

It is an arithmetic number, because the mean of its divisors is an integer number (506066562).

Almost surely, 2^1012133123 is an apocalyptic number.

1012133123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012133123 is an equidigital number, since it uses as much as digits as its factorization.

1012133123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1012133123 is about 31814.0397151949. The cubic root of 1012133123 is about 1004.0281267418.

Adding to 1012133123 its reverse (3213312101), we get a palindrome (4225445224).

The spelling of 1012133123 in words is "one billion, twelve million, one hundred thirty-three thousand, one hundred twenty-three".