2120105553542 has 8 divisors (see below), whose sum is σ = 3347535084600. Its totient is φ = 1004260525344.

The previous prime is 2120105553499. The next prime is 2120105553569. The reversal of 2120105553542 is 2453555010212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27896125667 + ... + 27896125742.

It is an arithmetic number, because the mean of its divisors is an integer number (418441885575).

Almost surely, 2^{2120105553542} is an apocalyptic number.

2120105553542 is a deficient number, since it is larger than the sum of its proper divisors (1227429531058).

2120105553542 is a wasteful number, since it uses less digits than its factorization.

2120105553542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55792251430.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 2120105553542 in words is "two trillion, one hundred twenty billion, one hundred five million, five hundred fifty-three thousand, five hundred forty-two".