11020231302121 has 4 divisors (see below), whose sum is σ = 11121334341700. Its totient is φ = 10919128262544.

The previous prime is 11020231302107. The next prime is 11020231302151. The reversal of 11020231302121 is 12120313202011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2564994433600 + 8455236868521 = 1601560^2 + 2907789^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020231302121 - 2¹⁷ = 11020231171049 is a prime.

It is a super-2 number, since 2×11020231302121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11020231302151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50551519626 + ... + 50551519843.

It is an arithmetic number, because the mean of its divisors is an integer number (2780333585425).

Almost surely, 2^{11020231302121} is an apocalyptic number.

It is an amenable number.

11020231302121 is a deficient number, since it is larger than the sum of its proper divisors (101103039579).

11020231302121 is a wasteful number, since it uses less digits than its factorization.

11020231302121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101103039578.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11020231302121 its reverse (12120313202011), we get a palindrome (23140544504132).

The spelling of 11020231302121 in words is "eleven trillion, twenty billion, two hundred thirty-one million, three hundred two thousand, one hundred twenty-one".