1012333121 has 4 divisors (see below), whose sum is σ = 1026200772. Its totient is φ = 998465472.

The previous prime is 1012333111. The next prime is 1012333139. The reversal of 1012333121 is 1213332101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 335292721 + 677040400 = 18311^2 + 26020^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012333121 - 2¹⁴ = 1012316737 is a prime.

It is a super-3 number, since 3×1012333121³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012333121.

It is not an unprimeable number, because it can be changed into a prime (1012333111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6933716 + ... + 6933861.

It is an arithmetic number, because the mean of its divisors is an integer number (256550193).

Almost surely, 2^1012333121 is an apocalyptic number.

It is an amenable number.

1012333121 is a deficient number, since it is larger than the sum of its proper divisors (13867651).

1012333121 is an equidigital number, since it uses as much as digits as its factorization.

1012333121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13867650.

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

The square root of 1012333121 is about 31817.1827948359. The cubic root of 1012333121 is about 1004.0942545359.

Adding to 1012333121 its reverse (1213332101), we get a palindrome (2225665222).

The spelling of 1012333121 in words is "one billion, twelve million, three hundred thirty-three thousand, one hundred twenty-one".