103021320123 has 8 divisors (see below), whose sum is σ = 152624178000. Its totient is φ = 68680880064.

The previous prime is 103021320091. The next prime is 103021320137. The reversal of 103021320123 is 321023120301.

It is not a de Polignac number, because 103021320123 - 2⁵ = 103021320091 is a prime.

It is a super-2 number, since 2×103021320123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103021320096 and 103021320105.

It is not an unprimeable number, because it can be changed into a prime (103021320173) 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, 1907802198 + ... + 1907802251.

It is an arithmetic number, because the mean of its divisors is an integer number (19078022250).

Almost surely, 2^103021320123 is an apocalyptic number.

103021320123 is a deficient number, since it is larger than the sum of its proper divisors (49602857877).

103021320123 is an equidigital number, since it uses as much as digits as its factorization.

103021320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3815604458 (or 3815604452 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 103021320123 its reverse (321023120301), we get a palindrome (424044440424).

The spelling of 103021320123 in words is "one hundred three billion, twenty-one million, three hundred twenty thousand, one hundred twenty-three".