121402020331043 has 8 divisors (see below), whose sum is σ = 124363205400336. Its totient is φ = 118440842889600.

The previous prime is 121402020331003. The next prime is 121402020331049. The reversal of 121402020331043 is 340133020204121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121402020331043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121402020331049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43125248 + ... + 45854018.

It is an arithmetic number, because the mean of its divisors is an integer number (15545400675042).

Almost surely, 2^{121402020331043} is an apocalyptic number.

121402020331043 is a deficient number, since it is larger than the sum of its proper divisors (2961185069293).

121402020331043 is a wasteful number, since it uses less digits than its factorization.

121402020331043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813925.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 121402020331043 its reverse (340133020204121), we get a palindrome (461535040535164).

The spelling of 121402020331043 in words is "one hundred twenty-one trillion, four hundred two billion, twenty million, three hundred thirty-one thousand, forty-three".