120120001011 has 6 divisors (see below), whose sum is σ = 173506668140. Its totient is φ = 80080000668.

The previous prime is 120120001007. The next prime is 120120001013. The reversal of 120120001011 is 110100021021.

It is a happy number.

It is not a de Polignac number, because 120120001011 - 2² = 120120001007 is a prime.

It is a super-3 number, since 3×120120001011³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 13346666779 = 120120001011 / (1 + 2 + 0 + 1 + 2 + 0 + 0 + 0 + 1 + 0 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120120000984 and 120120001002.

It is not an unprimeable number, because it can be changed into a prime (120120001013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6673333381 + ... + 6673333398.

Almost surely, 2^120120001011 is an apocalyptic number.

120120001011 is a deficient number, since it is larger than the sum of its proper divisors (53386667129).

120120001011 is a wasteful number, since it uses less digits than its factorization.

120120001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13346666785 (or 13346666782 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 120120001011 its reverse (110100021021), we get a palindrome (230220022032).

The spelling of 120120001011 in words is "one hundred twenty billion, one hundred twenty million, one thousand, eleven".