121031011 has 8 divisors (see below), whose sum is σ = 124223760. Its totient is φ = 117879168.

The previous prime is 121030993. The next prime is 121031021. The reversal of 121031011 is 110130121.

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 121031011 - 2⁵ = 121030979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121031021) 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, 4186 + ... + 16111.

It is an arithmetic number, because the mean of its divisors is an integer number (15527970).

Almost surely, 2^121031011 is an apocalyptic number.

121031011 is a deficient number, since it is larger than the sum of its proper divisors (3192749).

121031011 is an equidigital number, since it uses as much as digits as its factorization.

121031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20453.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 121031011 is about 11001.4095006049. The cubic root of 121031011 is about 494.6509950180.

Adding to 121031011 its reverse (110130121), we get a palindrome (231161132).

The spelling of 121031011 in words is "one hundred twenty-one million, thirty-one thousand, eleven".