1930103121 has 48 divisors (see below), whose sum is σ = 2827284480. Its totient is φ = 1167751200.

The previous prime is 1930103107. The next prime is 1930103141. The reversal of 1930103121 is 1213010391.

It is not a de Polignac number, because 1930103121 - 2⁹ = 1930102609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1930103141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10782610 + ... + 10782788.

It is an arithmetic number, because the mean of its divisors is an integer number (58901760).

Almost surely, 2^1930103121 is an apocalyptic number.

It is an amenable number.

1930103121 is a deficient number, since it is larger than the sum of its proper divisors (897181359).

1930103121 is a wasteful number, since it uses less digits than its factorization.

1930103121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1930103121 is about 43932.9389069295. The cubic root of 1930103121 is about 1245.0692414838.

The spelling of 1930103121 in words is "one billion, nine hundred thirty million, one hundred three thousand, one hundred twenty-one".