121133103 has 16 divisors (see below), whose sum is σ = 198782976. Its totient is φ = 63894240.

The previous prime is 121133101. The next prime is 121133123. The reversal of 121133103 is 301331121.

It is not a de Polignac number, because 121133103 - 2¹ = 121133101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121133101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221583 + ... + 222128.

It is an arithmetic number, because the mean of its divisors is an integer number (12423936).

Almost surely, 2^121133103 is an apocalyptic number.

121133103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121133103 is a deficient number, since it is larger than the sum of its proper divisors (77649873).

121133103 is a wasteful number, since it uses less digits than its factorization.

121133103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443734.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 121133103 is about 11006.0484734531. The cubic root of 121133103 is about 494.7900384923.

Adding to 121133103 its reverse (301331121), we get a palindrome (422464224).

The spelling of 121133103 in words is "one hundred twenty-one million, one hundred thirty-three thousand, one hundred three".