2231232101 has 12 divisors (see below), whose sum is σ = 2596705452. Its totient is φ = 1911607488.

The previous prime is 2231232097. The next prime is 2231232103. The reversal of 2231232101 is 1012321322.

It can be written as a sum of positive squares in 2 ways, for example, as 1125669601 + 1105562500 = 33551^2 + 33250^2 .

It is not a de Polignac number, because 2231232101 - 2² = 2231232097 is a prime.

It is a super-3 number, since 3×2231232101³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2231232101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231232103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111971 + ... + 130383.

It is an arithmetic number, because the mean of its divisors is an integer number (216392121).

Almost surely, 2^2231232101 is an apocalyptic number.

It is an amenable number.

2231232101 is a deficient number, since it is larger than the sum of its proper divisors (365473351).

2231232101 is a wasteful number, since it uses less digits than its factorization.

2231232101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20900 (or 20893 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2231232101 is about 47235.9196057407. The cubic root of 2231232101 is about 1306.7171263819.

Adding to 2231232101 its reverse (1012321322), we get a palindrome (3243553423).

The spelling of 2231232101 in words is "two billion, two hundred thirty-one million, two hundred thirty-two thousand, one hundred one".