1021145201233 has 4 divisors (see below), whose sum is σ = 1022504915968. Its totient is φ = 1019785486500.

The previous prime is 1021145201231. The next prime is 1021145201353. The reversal of 1021145201233 is 3321025411201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1021145201233 - 2¹ = 1021145201231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021145201198 and 1021145201207.

It is not an unprimeable number, because it can be changed into a prime (1021145201231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679856241 + ... + 679857742.

It is an arithmetic number, because the mean of its divisors is an integer number (255626228992).

Almost surely, 2^{1021145201233} is an apocalyptic number.

It is an amenable number.

1021145201233 is a deficient number, since it is larger than the sum of its proper divisors (1359714735).

1021145201233 is an equidigital number, since it uses as much as digits as its factorization.

1021145201233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359714734.

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 1021145201233 in words is "one trillion, twenty-one billion, one hundred forty-five million, two hundred one thousand, two hundred thirty-three".