121420103 has 8 divisors (see below), whose sum is σ = 146928672. Its totient is φ = 97952256.

The previous prime is 121420043. The next prime is 121420109. The reversal of 121420103 is 301024121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121420103 - 2¹⁰ = 121419079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121420109) 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, 510050 + ... + 510287.

It is an arithmetic number, because the mean of its divisors is an integer number (18366084).

Almost surely, 2^121420103 is an apocalyptic number.

121420103 is a deficient number, since it is larger than the sum of its proper divisors (25508569).

121420103 is a wasteful number, since it uses less digits than its factorization.

121420103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020361.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121420103 is about 11019.0790450019. The cubic root of 121420103 is about 495.1804980628.

Adding to 121420103 its reverse (301024121), we get a palindrome (422444224).

The spelling of 121420103 in words is "one hundred twenty-one million, four hundred twenty thousand, one hundred three".