22031542541 has 4 divisors (see below), whose sum is σ = 22036929372. Its totient is φ = 22026155712.

The previous prime is 22031542537. The next prime is 22031542543. The reversal of 22031542541 is 14524513022.

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 14604722500 + 7426820041 = 120850^2 + 86179^2 .

It is a cyclic number.

It is not a de Polignac number, because 22031542541 - 2² = 22031542537 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 (22031542543) 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, 2687276 + ... + 2695461.

It is an arithmetic number, because the mean of its divisors is an integer number (5509232343).

Almost surely, 2^22031542541 is an apocalyptic number.

It is an amenable number.

22031542541 is a deficient number, since it is larger than the sum of its proper divisors (5386831).

22031542541 is an equidigital number, since it uses as much as digits as its factorization.

22031542541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5386830.

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 22031542541 in words is "twenty-two billion, thirty-one million, five hundred forty-two thousand, five hundred forty-one".