2172652123 has 2 divisors, whose sum is σ = 2172652124. Its totient is φ = 2172652122.

The previous prime is 2172652117. The next prime is 2172652129. The reversal of 2172652123 is 3212562712.

It is a balanced prime because it is at equal distance from previous prime (2172652117) and next prime (2172652129).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2172652123 is a prime.

It is not a weakly prime, because it can be changed into another prime (2172652129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086326061 + 1086326062.

It is an arithmetic number, because the mean of its divisors is an integer number (1086326062).

Almost surely, 2^2172652123 is an apocalyptic number.

2172652123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2172652123 is an equidigital number, since it uses as much as digits as its factorization.

2172652123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 2172652123 is about 46611.7165849961. The cubic root of 2172652123 is about 1295.1798069776.

The spelling of 2172652123 in words is "two billion, one hundred seventy-two million, six hundred fifty-two thousand, one hundred twenty-three".