121220111420983 has 2 divisors, whose sum is σ = 121220111420984. Its totient is φ = 121220111420982.

The previous prime is 121220111420951. The next prime is 121220111421053. The reversal of 121220111420983 is 389024111022121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121220111420983 - 2⁵ = 121220111420951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121220111420183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610055710491 + 60610055710492.

It is an arithmetic number, because the mean of its divisors is an integer number (60610055710492).

Almost surely, 2^{121220111420983} is an apocalyptic number.

121220111420983 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220111420983 is an equidigital number, since it uses as much as digits as its factorization.

121220111420983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 37.

The spelling of 121220111420983 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred eleven million, four hundred twenty thousand, nine hundred eighty-three".