2120453843512 has 8 divisors (see below), whose sum is σ = 3975850956600. Its totient is φ = 1060226921752.

The previous prime is 2120453843503. The next prime is 2120453843513. The reversal of 2120453843512 is 2153483540212.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120453843513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132528365212 + ... + 132528365227.

It is an arithmetic number, because the mean of its divisors is an integer number (496981369575).

Almost surely, 2^{2120453843512} is an apocalyptic number.

It is an amenable number.

2120453843512 is a deficient number, since it is larger than the sum of its proper divisors (1855397113088).

2120453843512 is a wasteful number, since it uses less digits than its factorization.

2120453843512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265056730445 (or 265056730441 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 2120453843512 in words is "two trillion, one hundred twenty billion, four hundred fifty-three million, eight hundred forty-three thousand, five hundred twelve".