1012311123 has 8 divisors (see below), whose sum is σ = 1352971200. Its totient is φ = 673262568.

The previous prime is 1012311103. The next prime is 1012311137. The reversal of 1012311123 is 3211132101.

It is a happy number.

1012311123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1012311123 - 2¹³ = 1012302931 is a prime.

It is a super-2 number, since 2×1012311123² = 2049547619499042258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1012311103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401413 + ... + 403926.

It is an arithmetic number, because the mean of its divisors is an integer number (169121400).

Almost surely, 2^1012311123 is an apocalyptic number.

1012311123 is a deficient number, since it is larger than the sum of its proper divisors (340660077).

1012311123 is an equidigital number, since it uses as much as digits as its factorization.

1012311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805761.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1012311123 is about 31816.8370992467. The cubic root of 1012311123 is about 1004.0869814934.

Adding to 1012311123 its reverse (3211132101), we get a palindrome (4223443224).

The spelling of 1012311123 in words is "one billion, twelve million, three hundred eleven thousand, one hundred twenty-three".