2152201603123 has 16 divisors (see below), whose sum is σ = 2533134395232. Its totient is φ = 1802704896000.

The previous prime is 2152201603109. The next prime is 2152201603127. The reversal of 2152201603123 is 3213061022512.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2152201603123 is a prime.

It is a super-2 number, since 2×2152201603123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2152201603091 and 2152201603100.

It is not an unprimeable number, because it can be changed into a prime (2152201603127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13832398 + ... + 13987123.

It is an arithmetic number, because the mean of its divisors is an integer number (158320899702).

Almost surely, 2^{2152201603123} is an apocalyptic number.

2152201603123 is a deficient number, since it is larger than the sum of its proper divisors (380932792109).

2152201603123 is a wasteful number, since it uses less digits than its factorization.

2152201603123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27820086.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 2152201603123 its reverse (3213061022512), we get a palindrome (5365262625635).

The spelling of 2152201603123 in words is "two trillion, one hundred fifty-two billion, two hundred one million, six hundred three thousand, one hundred twenty-three".