103121300321 has 24 divisors (see below), whose sum is σ = 118191003840. Its totient is φ = 89680219200.

The previous prime is 103121300287. The next prime is 103121300339. The reversal of 103121300321 is 123003121301.

It is not a de Polignac number, because 103121300321 - 2⁶ = 103121300257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103121300321.

It is not an unprimeable number, because it can be changed into a prime (103121300021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 492476 + ... + 669906.

It is an arithmetic number, because the mean of its divisors is an integer number (4924625160).

Almost surely, 2^103121300321 is an apocalyptic number.

It is an amenable number.

103121300321 is a deficient number, since it is larger than the sum of its proper divisors (15069703519).

103121300321 is a wasteful number, since it uses less digits than its factorization.

103121300321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177657 (or 177644 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 103121300321 its reverse (123003121301), we get a palindrome (226124421622).

The spelling of 103121300321 in words is "one hundred three billion, one hundred twenty-one million, three hundred thousand, three hundred twenty-one".