245202133123 has 8 divisors (see below), whose sum is σ = 251871051888. Its totient is φ = 238535416224.

The previous prime is 245202133109. The next prime is 245202133247. The reversal of 245202133123 is 321331202542.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245202133123 - 2⁵ = 245202133091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245202133091 and 245202133100.

It is not an unprimeable number, because it can be changed into a prime (245202133103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323461 + ... + 771382.

It is an arithmetic number, because the mean of its divisors is an integer number (31483881486).

Almost surely, 2^245202133123 is an apocalyptic number.

245202133123 is a deficient number, since it is larger than the sum of its proper divisors (6668918765).

245202133123 is a wasteful number, since it uses less digits than its factorization.

245202133123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100933.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 245202133123 its reverse (321331202542), we get a palindrome (566533335665).

The spelling of 245202133123 in words is "two hundred forty-five billion, two hundred two million, one hundred thirty-three thousand, one hundred twenty-three".