1200123231031 has 8 divisors (see below), whose sum is σ = 1201769425584. Its totient is φ = 1198477687680.

The previous prime is 1200123230993. The next prime is 1200123231061. The reversal of 1200123231031 is 1301323210021.

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

It is a cyclic number.

It is not a de Polignac number, because 1200123231031 - 2²¹ = 1200121133879 is a prime.

It is a super-2 number, since 2×1200123231031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200123231061) 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, 3584565 + ... + 3905041.

It is an arithmetic number, because the mean of its divisors is an integer number (150221178198).

Almost surely, 2^{1200123231031} is an apocalyptic number.

1200123231031 is a deficient number, since it is larger than the sum of its proper divisors (1646194553).

1200123231031 is an equidigital number, since it uses as much as digits as its factorization.

1200123231031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325601.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1200123231031 its reverse (1301323210021), we get a palindrome (2501446441052).

The spelling of 1200123231031 in words is "one trillion, two hundred billion, one hundred twenty-three million, two hundred thirty-one thousand, thirty-one".