2120105133541 has 4 divisors (see below), whose sum is σ = 2212283617632. Its totient is φ = 2027926649452.

The previous prime is 2120105133533. The next prime is 2120105133569. The reversal of 2120105133541 is 1453315010212.

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 a cyclic number.

It is not a de Polignac number, because 2120105133541 - 2³ = 2120105133533 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 (2120105133581) 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, 46089242011 + ... + 46089242056.

It is an arithmetic number, because the mean of its divisors is an integer number (553070904408).

Almost surely, 2^{2120105133541} is an apocalyptic number.

It is an amenable number.

2120105133541 is a deficient number, since it is larger than the sum of its proper divisors (92178484091).

2120105133541 is an equidigital number, since it uses as much as digits as its factorization.

2120105133541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92178484090.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 2120105133541 in words is "two trillion, one hundred twenty billion, one hundred five million, one hundred thirty-three thousand, five hundred forty-one".