2120103155162 has 4 divisors (see below), whose sum is σ = 3180154732746. Its totient is φ = 1060051577580.

The previous prime is 2120103155161. The next prime is 2120103155213. The reversal of 2120103155162 is 2615513010212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2035276010161 + 84827145001 = 1426631^2 + 291251^2 .

It is not an unprimeable number, because it can be changed into a prime (2120103155161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530025788789 + ... + 530025788792.

Almost surely, 2^{2120103155162} is an apocalyptic number.

2120103155162 is a deficient number, since it is larger than the sum of its proper divisors (1060051577584).

2120103155162 is a wasteful number, since it uses less digits than its factorization.

2120103155162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060051577583.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 2120103155162 its reverse (2615513010212), we get a palindrome (4735616165374).

The spelling of 2120103155162 in words is "two trillion, one hundred twenty billion, one hundred three million, one hundred fifty-five thousand, one hundred sixty-two".