121400143012 has 18 divisors (see below), whose sum is σ = 220028743298. Its totient is φ = 58606963968.

The previous prime is 121400143003. The next prime is 121400143027. The reversal of 121400143012 is 210341004121.

It can be written as a sum of positive squares in 3 ways, for example, as 1445976676 + 119954166336 = 38026^2 + 346344^2 .

It is a super-3 number, since 3×121400143012³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18040653 + ... + 18047380.

Almost surely, 2^121400143012 is an apocalyptic number.

It is an amenable number.

121400143012 is a deficient number, since it is larger than the sum of its proper divisors (98628600286).

121400143012 is a wasteful number, since it uses less digits than its factorization.

121400143012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36088095 (or 36088064 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121400143012 its reverse (210341004121), we get a palindrome (331741147133).

The spelling of 121400143012 in words is "one hundred twenty-one billion, four hundred million, one hundred forty-three thousand, twelve".