102202112012123 has 4 divisors (see below), whose sum is σ = 102224490407760. Its totient is φ = 102179733616488.

The previous prime is 102202112012111. The next prime is 102202112012167. The reversal of 102202112012123 is 321210211202201.

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

It is a cyclic number.

It is not a de Polignac number, because 102202112012123 - 2¹² = 102202112008027 is a prime.

It is a super-3 number, since 3×102202112012123³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102202112012095 and 102202112012104.

It is not an unprimeable number, because it can be changed into a prime (102202112012023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11189190968 + ... + 11189200101.

It is an arithmetic number, because the mean of its divisors is an integer number (25556122601940).

Almost surely, 2^{102202112012123} is an apocalyptic number.

102202112012123 is a deficient number, since it is larger than the sum of its proper divisors (22378395637).

102202112012123 is an equidigital number, since it uses as much as digits as its factorization.

102202112012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22378395636.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 102202112012123 its reverse (321210211202201), we get a palindrome (423412323214324).

The spelling of 102202112012123 in words is "one hundred two trillion, two hundred two billion, one hundred twelve million, twelve thousand, one hundred twenty-three".