103121220439 has 2 divisors, whose sum is σ = 103121220440. Its totient is φ = 103121220438.

The previous prime is 103121220421. The next prime is 103121220443. The reversal of 103121220439 is 934022121301.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103121220439 - 2⁷ = 103121220311 is a prime.

It is a super-2 number, since 2×103121220439² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103121220409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51560610219 + 51560610220.

It is an arithmetic number, because the mean of its divisors is an integer number (51560610220).

Almost surely, 2^103121220439 is an apocalyptic number.

103121220439 is a deficient number, since it is larger than the sum of its proper divisors (1).

103121220439 is an equidigital number, since it uses as much as digits as its factorization.

103121220439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 103121220439 in words is "one hundred three billion, one hundred twenty-one million, two hundred twenty thousand, four hundred thirty-nine".