1201021130023 has 48 divisors (see below), whose sum is σ = 1486716134400. Its totient is φ = 961934783040.

The previous prime is 1201021130009. The next prime is 1201021130041. The reversal of 1201021130023 is 3200311201021.

It is not a de Polignac number, because 1201021130023 - 2²⁵ = 1200987575591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201021129979 and 1201021130006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201021130003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16715028 + ... + 16786726.

It is an arithmetic number, because the mean of its divisors is an integer number (30973252800).

Almost surely, 2^{1201021130023} is an apocalyptic number.

1201021130023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1201021130023 is a deficient number, since it is larger than the sum of its proper divisors (285695004377).

1201021130023 is a wasteful number, since it uses less digits than its factorization.

1201021130023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72220 (or 72209 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1201021130023 its reverse (3200311201021), we get a palindrome (4401332331044).

The spelling of 1201021130023 in words is "one trillion, two hundred one billion, twenty-one million, one hundred thirty thousand, twenty-three".