101220120999983 has 2 divisors, whose sum is σ = 101220120999984. Its totient is φ = 101220120999982.

The previous prime is 101220120999973. The next prime is 101220121000007. The reversal of 101220120999983 is 389999021022101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101220120999983 - 2⁸ = 101220120999727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101220120999973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610060499991 + 50610060499992.

It is an arithmetic number, because the mean of its divisors is an integer number (50610060499992).

Almost surely, 2^{101220120999983} is an apocalyptic number.

101220120999983 is a deficient number, since it is larger than the sum of its proper divisors (1).

101220120999983 is an equidigital number, since it uses as much as digits as its factorization.

101220120999983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 56.

The spelling of 101220120999983 in words is "one hundred one trillion, two hundred twenty billion, one hundred twenty million, nine hundred ninety-nine thousand, nine hundred eighty-three".