103051421 has 12 divisors (see below), whose sum is σ = 118652544. Its totient is φ = 88749000.

The previous prime is 103051393. The next prime is 103051423. The reversal of 103051421 is 124150301.

It is not a de Polignac number, because 103051421 - 2⁶ = 103051357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103051421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103051423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9005 + ... + 16946.

It is an arithmetic number, because the mean of its divisors is an integer number (9887712).

Almost surely, 2^103051421 is an apocalyptic number.

103051421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

103051421 is a deficient number, since it is larger than the sum of its proper divisors (15601123).

103051421 is a wasteful number, since it uses less digits than its factorization.

103051421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26000 (or 25981 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 103051421 is about 10151.4245798311. The cubic root of 103051421 is about 468.8328077469.

The spelling of 103051421 in words is "one hundred three million, fifty-one thousand, four hundred twenty-one".