1012310121 has 16 divisors (see below), whose sum is σ = 1387545984. Its totient is φ = 656008704.

The previous prime is 1012310107. The next prime is 1012310179. The reversal of 1012310121 is 1210132101.

It is not a de Polignac number, because 1012310121 - 2⁷ = 1012309993 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1012310097 and 1012310106.

It is not an unprimeable number, because it can be changed into a prime (1012310021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132025 + ... + 139481.

It is an arithmetic number, because the mean of its divisors is an integer number (86721624).

Almost surely, 2^1012310121 is an apocalyptic number.

It is an amenable number.

1012310121 is a deficient number, since it is larger than the sum of its proper divisors (375235863).

1012310121 is a wasteful number, since it uses less digits than its factorization.

1012310121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8720.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1012310121 is about 31816.8213528630. The cubic root of 1012310121 is about 1004.0866502068.

Adding to 1012310121 its reverse (1210132101), we get a palindrome (2222442222).

The spelling of 1012310121 in words is "one billion, twelve million, three hundred ten thousand, one hundred twenty-one".