115201203123 has 16 divisors (see below), whose sum is σ = 161710244480. Its totient is φ = 72747699264.

The previous prime is 115201203119. The next prime is 115201203127. The reversal of 115201203123 is 321302102511.

It is an interprime number because it is at equal distance from previous prime (115201203119) and next prime (115201203127).

It is not a de Polignac number, because 115201203123 - 2² = 115201203119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115201203123.

It is not an unprimeable number, because it can be changed into a prime (115201203127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238440 + ... + 535962.

It is an arithmetic number, because the mean of its divisors is an integer number (10106890280).

Almost surely, 2^115201203123 is an apocalyptic number.

115201203123 is a deficient number, since it is larger than the sum of its proper divisors (46509041357).

115201203123 is a wasteful number, since it uses less digits than its factorization.

115201203123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304338.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 115201203123 its reverse (321302102511), we get a palindrome (436503305634).

The spelling of 115201203123 in words is "one hundred fifteen billion, two hundred one million, two hundred three thousand, one hundred twenty-three".