121014331400 has 24 divisors (see below), whose sum is σ = 281358320970. Its totient is φ = 48405732480.

The previous prime is 121014331357. The next prime is 121014331409. The reversal of 121014331400 is 4133410121.

It can be written as a sum of positive squares in 3 ways, for example, as 45359628484 + 75654702916 = 212978^2 + 275054^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (121014331409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 302535629 + ... + 302536028.

Almost surely, 2^121014331400 is an apocalyptic number.

121014331400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121014331400 is an abundant number, since it is smaller than the sum of its proper divisors (160343989570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121014331400 is a wasteful number, since it uses less digits than its factorization.

121014331400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605071673 (or 605071664 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121014331400 its reverse (4133410121), we get a palindrome (125147741521).

The spelling of 121014331400 in words is "one hundred twenty-one billion, fourteen million, three hundred thirty-one thousand, four hundred".