2120353545 has 32 divisors (see below), whose sum is σ = 3573763200. Its totient is φ = 1070544384.

The previous prime is 2120353541. The next prime is 2120353553. The reversal of 2120353545 is 5453530212.

It is not a de Polignac number, because 2120353545 - 2² = 2120353541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120353541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 680451 + ... + 683559.

It is an arithmetic number, because the mean of its divisors is an integer number (111680100).

Almost surely, 2^2120353545 is an apocalyptic number.

It is an amenable number.

2120353545 is a deficient number, since it is larger than the sum of its proper divisors (1453409655).

2120353545 is a wasteful number, since it uses less digits than its factorization.

2120353545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5529.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 2120353545 is about 46047.2968261982. The cubic root of 2120353545 is about 1284.7030649223.

Adding to 2120353545 its reverse (5453530212), we get a palindrome (7573883757).

The spelling of 2120353545 in words is "two billion, one hundred twenty million, three hundred fifty-three thousand, five hundred forty-five".