120121001011 has 8 divisors (see below), whose sum is σ = 131361490800. Its totient is φ = 108933911040.

The previous prime is 120121000997. The next prime is 120121001111. The reversal of 120121001011 is 110100121021.

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 120121001011 - 2¹⁵ = 120120968243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120121001111) 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, 13345246 + ... + 13354243.

It is an arithmetic number, because the mean of its divisors is an integer number (16420186350).

Almost surely, 2^120121001011 is an apocalyptic number.

120121001011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120121001011 is a deficient number, since it is larger than the sum of its proper divisors (11240489789).

120121001011 is a wasteful number, since it uses less digits than its factorization.

120121001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26699909.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 120121001011 its reverse (110100121021), we get a palindrome (230221122032).

The spelling of 120121001011 in words is "one hundred twenty billion, one hundred twenty-one million, one thousand, eleven".