103121310021198 has 32 divisors (see below), whose sum is σ = 235706161953024. Its totient is φ = 29463192625152.

The previous prime is 103121310021179. The next prime is 103121310021209. The reversal of 103121310021198 is 891120013121301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50128261 + ... + 52144847.

It is an arithmetic number, because the mean of its divisors is an integer number (7365817561032).

Almost surely, 2^{103121310021198} is an apocalyptic number.

103121310021198 is an abundant number, since it is smaller than the sum of its proper divisors (132584851931826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103121310021198 is a wasteful number, since it uses less digits than its factorization.

103121310021198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234136.

The product of its (nonzero) digits is 2592, while the sum is 33.

Adding to 103121310021198 its reverse (891120013121301), we get a palindrome (994241323142499).

The spelling of 103121310021198 in words is "one hundred three trillion, one hundred twenty-one billion, three hundred ten million, twenty-one thousand, one hundred ninety-eight".