121413400303 has 6 divisors (see below), whose sum is σ = 131471315304. Its totient is φ = 112073907816.

The previous prime is 121413400253. The next prime is 121413400351. The reversal of 121413400303 is 303004314121.

It is not a de Polignac number, because 121413400303 - 2²⁵ = 121379845871 is a prime.

It is a super-5 number, since 5×121413400303⁵ (a number of 57 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121413401303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 359211075 + ... + 359211412.

It is an arithmetic number, because the mean of its divisors is an integer number (21911885884).

Almost surely, 2^121413400303 is an apocalyptic number.

121413400303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121413400303 is a deficient number, since it is larger than the sum of its proper divisors (10057915001).

121413400303 is an equidigital number, since it uses as much as digits as its factorization.

121413400303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718422513 (or 718422500 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121413400303 its reverse (303004314121), we get a palindrome (424417714424).

The spelling of 121413400303 in words is "one hundred twenty-one billion, four hundred thirteen million, four hundred thousand, three hundred three".