103121100331 has 4 divisors (see below), whose sum is σ = 103264524000. Its totient is φ = 102977676664.

The previous prime is 103121100311. The next prime is 103121100347. The reversal of 103121100331 is 133001121301.

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 103121100331 - 2¹⁹ = 103120576043 is a prime.

It is a super-2 number, since 2×103121100331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103121100311) 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, 71710756 + ... + 71712193.

It is an arithmetic number, because the mean of its divisors is an integer number (25816131000).

Almost surely, 2^103121100331 is an apocalyptic number.

103121100331 is a deficient number, since it is larger than the sum of its proper divisors (143423669).

103121100331 is an equidigital number, since it uses as much as digits as its factorization.

103121100331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143423668.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 103121100331 its reverse (133001121301), we get a palindrome (236122221632).

The spelling of 103121100331 in words is "one hundred three billion, one hundred twenty-one million, one hundred thousand, three hundred thirty-one".