1020210121233 has 6 divisors (see below), whose sum is σ = 1473636841794. Its totient is φ = 680140080816.

The previous prime is 1020210121219. The next prime is 1020210121243. The reversal of 1020210121233 is 3321210120201.

1020210121233 is a `hidden beast` number, since 102 + 0 + 210 + 121 + 233 = 666.

It can be written as a sum of positive squares in only one way, i.e., 973807791489 + 46402329744 = 986817^2 + 215412^2 .

It is not a de Polignac number, because 1020210121233 - 2⁵ = 1020210121201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1020210121213) 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, 56678340060 + ... + 56678340077.

It is an arithmetic number, because the mean of its divisors is an integer number (245606140299).

Almost surely, 2^{1020210121233} is an apocalyptic number.

It is an amenable number.

1020210121233 is a deficient number, since it is larger than the sum of its proper divisors (453426720561).

1020210121233 is a wasteful number, since it uses less digits than its factorization.

1020210121233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113356680143 (or 113356680140 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1020210121233 its reverse (3321210120201), we get a palindrome (4341420241434).

The spelling of 1020210121233 in words is "one trillion, twenty billion, two hundred ten million, one hundred twenty-one thousand, two hundred thirty-three".