1100120213231 has 8 divisors (see below), whose sum is σ = 1204825266960. Its totient is φ = 998283791232.

The previous prime is 1100120213149. The next prime is 1100120213249. The reversal of 1100120213231 is 1323120210011.

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

It is a de Polignac number, because none of the positive numbers 2^k-1100120213231 is a prime.

It is a super-2 number, since 2×1100120213231² (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 (1100120213251) 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, 717157130 + ... + 717158663.

It is an arithmetic number, because the mean of its divisors is an integer number (150603158370).

Almost surely, 2^{1100120213231} is an apocalyptic number.

1100120213231 is a deficient number, since it is larger than the sum of its proper divisors (104705053729).

1100120213231 is a wasteful number, since it uses less digits than its factorization.

1100120213231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434315865.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1100120213231 its reverse (1323120210011), we get a palindrome (2423240423242).

The spelling of 1100120213231 in words is "one trillion, one hundred billion, one hundred twenty million, two hundred thirteen thousand, two hundred thirty-one".