20120210010239 has 2 divisors, whose sum is σ = 20120210010240. Its totient is φ = 20120210010238.

The previous prime is 20120210010223. The next prime is 20120210010293. The reversal of 20120210010239 is 93201001202102.

It is a happy number.

Together with next prime (20120210010293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20120210010239 - 2⁴ = 20120210010223 is a prime.

It is a super-2 number, since 2×20120210010239² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20120210610239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060105005119 + 10060105005120.

It is an arithmetic number, because the mean of its divisors is an integer number (10060105005120).

Almost surely, 2^{20120210010239} is an apocalyptic number.

20120210010239 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120210010239 is an equidigital number, since it uses as much as digits as its factorization.

20120210010239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 20120210010239 in words is "twenty trillion, one hundred twenty billion, two hundred ten million, ten thousand, two hundred thirty-nine".