1131233213101 has 6 divisors (see below), whose sum is σ = 1168901749806. Its totient is φ = 1094741818200.

The previous prime is 1131233213093. The next prime is 1131233213167. The reversal of 1131233213101 is 1013123321311.

It can be written as a sum of positive squares in only one way, i.e., 631228661001 + 500004552100 = 794499^2 + 707110^2 .

It is not a de Polignac number, because 1131233213101 - 2³ = 1131233213093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131233213171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 588569910 + ... + 588571831.

It is an arithmetic number, because the mean of its divisors is an integer number (194816958301).

Almost surely, 2^{1131233213101} is an apocalyptic number.

It is an amenable number.

1131233213101 is a deficient number, since it is larger than the sum of its proper divisors (37668536705).

1131233213101 is an equidigital number, since it uses as much as digits as its factorization.

1131233213101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177141803 (or 1177141772 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1131233213101 its reverse (1013123321311), we get a palindrome (2144356534412).

It can be divided in two parts, 113123321310 and 1, that added together give a palindrome (113123321311).

The spelling of 1131233213101 in words is "one trillion, one hundred thirty-one billion, two hundred thirty-three million, two hundred thirteen thousand, one hundred one".