2233511381 has 4 divisors (see below), whose sum is σ = 2233686252. Its totient is φ = 2233336512.

The previous prime is 2233511369. The next prime is 2233511383. The reversal of 2233511381 is 1831153322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1819022500 + 414488881 = 42650^2 + 20359^2 .

It is a cyclic number.

It is not a de Polignac number, because 2233511381 - 2⁶ = 2233511317 is a prime.

It is a super-2 number, since 2×2233511381² = 9977146178113054322, which 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 (2233511383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66626 + ... + 94371.

It is an arithmetic number, because the mean of its divisors is an integer number (558421563).

Almost surely, 2^2233511381 is an apocalyptic number.

It is an amenable number.

2233511381 is a deficient number, since it is larger than the sum of its proper divisors (174871).

2233511381 is a wasteful number, since it uses less digits than its factorization.

2233511381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174870.

The product of its digits is 4320, while the sum is 29.

The square root of 2233511381 is about 47260.0400020990. The cubic root of 2233511381 is about 1307.1619270543.

The spelling of 2233511381 in words is "two billion, two hundred thirty-three million, five hundred eleven thousand, three hundred eighty-one".