1021023202023 has 64 divisors (see below), whose sum is σ = 1678875609600. Its totient is φ = 608070862080.

The previous prime is 1021023201929. The next prime is 1021023202027. The reversal of 1021023202023 is 3202023201201.

It is not a de Polignac number, because 1021023202023 - 2⁹ = 1021023201511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021023201987 and 1021023202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021023202027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8075965 + ... + 8201417.

It is an arithmetic number, because the mean of its divisors is an integer number (26232431400).

Almost surely, 2^{1021023202023} is an apocalyptic number.

1021023202023 is a deficient number, since it is larger than the sum of its proper divisors (657852407577).

1021023202023 is a wasteful number, since it uses less digits than its factorization.

1021023202023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125949 (or 125943 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1021023202023 its reverse (3202023201201), we get a palindrome (4223046403224).

The spelling of 1021023202023 in words is "one trillion, twenty-one billion, twenty-three million, two hundred two thousand, twenty-three".