2012321541 has 4 divisors (see below), whose sum is σ = 2683095392. Its totient is φ = 1341547692.

The previous prime is 2012321537. The next prime is 2012321557. The reversal of 2012321541 is 1451232102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2012321541 - 2² = 2012321537 is a prime.

It is a super-2 number, since 2×2012321541² = 8098875968745229362, 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 (2012321561) 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, 335386921 + ... + 335386926.

It is an arithmetic number, because the mean of its divisors is an integer number (670773848).

Almost surely, 2^2012321541 is an apocalyptic number.

It is an amenable number.

2012321541 is a deficient number, since it is larger than the sum of its proper divisors (670773851).

2012321541 is an equidigital number, since it uses as much as digits as its factorization.

2012321541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670773850.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2012321541 is about 44858.9070419688. The cubic root of 2012321541 is about 1262.5031161051.

Adding to 2012321541 its reverse (1451232102), we get a palindrome (3463553643).

The spelling of 2012321541 in words is "two billion, twelve million, three hundred twenty-one thousand, five hundred forty-one".