120111400303021 has 8 divisors (see below), whose sum is σ = 127671628067640. Its totient is φ = 112606156013568.

The previous prime is 120111400303001. The next prime is 120111400303109. The reversal of 120111400303021 is 120303004111021.

It can be written as a sum of positive squares in 4 ways, for example, as 108672055818921 + 11439344484100 = 10424589^2 + 3382210^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 120111400303021 - 2³⁷ = 119973961349549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120111400303021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120111400303001) 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, 13745864286 + ... + 13745873023.

It is an arithmetic number, because the mean of its divisors is an integer number (15958953508455).

Almost surely, 2^{120111400303021} is an apocalyptic number.

It is an amenable number.

120111400303021 is a deficient number, since it is larger than the sum of its proper divisors (7560227764619).

120111400303021 is a wasteful number, since it uses less digits than its factorization.

120111400303021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27491737583.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 120111400303021 its reverse (120303004111021), we get a palindrome (240414404414042).

The spelling of 120111400303021 in words is "one hundred twenty trillion, one hundred eleven billion, four hundred million, three hundred three thousand, twenty-one".