121421014231 has 16 divisors (see below), whose sum is σ = 136783278720. Its totient is φ = 106826519520.

The previous prime is 121421014123. The next prime is 121421014261. The reversal of 121421014231 is 132410124121.

It is a cyclic number.

It is not a de Polignac number, because 121421014231 - 2⁷ = 121421014103 is a prime.

It is a super-2 number, since 2×121421014231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121421014261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1125985 + ... + 1229098.

It is an arithmetic number, because the mean of its divisors is an integer number (8548954920).

Almost surely, 2^121421014231 is an apocalyptic number.

121421014231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121421014231 is a deficient number, since it is larger than the sum of its proper divisors (15362264489).

121421014231 is a wasteful number, since it uses less digits than its factorization.

121421014231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355246.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 121421014231 its reverse (132410124121), we get a palindrome (253831138352).

The spelling of 121421014231 in words is "one hundred twenty-one billion, four hundred twenty-one million, fourteen thousand, two hundred thirty-one".