120111112001 has 2 divisors, whose sum is σ = 120111112002. Its totient is φ = 120111112000.

The previous prime is 120111111983. The next prime is 120111112087. The reversal of 120111112001 is 100211111021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104535822400 + 15575289601 = 323320^2 + 124801^2 .

It is a cyclic number.

It is not a de Polignac number, because 120111112001 - 2⁶ = 120111111937 is a prime.

It is a super-2 number, since 2×120111112001² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120111112201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60055556000 + 60055556001.

It is an arithmetic number, because the mean of its divisors is an integer number (60055556001).

Almost surely, 2^120111112001 is an apocalyptic number.

It is an amenable number.

120111112001 is a deficient number, since it is larger than the sum of its proper divisors (1).

120111112001 is an equidigital number, since it uses as much as digits as its factorization.

120111112001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 120111112001 its reverse (100211111021), we get a palindrome (220322223022).

The spelling of 120111112001 in words is "one hundred twenty billion, one hundred eleven million, one hundred twelve thousand, one".