1012123130 has 32 divisors (see below), whose sum is σ = 1887293520. Its totient is φ = 390522880.

The previous prime is 1012123129. The next prime is 1012123159. The reversal of 1012123130 is 313212101.

It can be written as a sum of positive squares in 8 ways, for example, as 219306481 + 792816649 = 14809^2 + 28157^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22622 + ... + 50358.

Almost surely, 2^1012123130 is an apocalyptic number.

1012123130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012123130 is a deficient number, since it is larger than the sum of its proper divisors (875170390).

1012123130 is a wasteful number, since it uses less digits than its factorization.

1012123130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27874.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1012123130 is about 31813.8826615049. The cubic root of 1012123130 is about 1004.0248224050.

Adding to 1012123130 its reverse (313212101), we get a palindrome (1325335231).

The spelling of 1012123130 in words is "one billion, twelve million, one hundred twenty-three thousand, one hundred thirty".