1011331210121 has 8 divisors (see below), whose sum is σ = 1050589346688. Its totient is φ = 972767908000.

The previous prime is 1011331210093. The next prime is 1011331210157. The reversal of 1011331210121 is 1210121331101.

1011331210121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011331210121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011331210121.

It is not an unprimeable number, because it can be changed into a prime (1011331212121) 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, 173705645 + ... + 173711466.

It is an arithmetic number, because the mean of its divisors is an integer number (131323668336).

Almost surely, 2^{1011331210121} is an apocalyptic number.

It is an amenable number.

1011331210121 is a deficient number, since it is larger than the sum of its proper divisors (39258136567).

1011331210121 is an equidigital number, since it uses as much as digits as its factorization.

1011331210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347417223.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1011331210121 its reverse (1210121331101), we get a palindrome (2221452541222).

The spelling of 1011331210121 in words is "one trillion, eleven billion, three hundred thirty-one million, two hundred ten thousand, one hundred twenty-one".