1021023202231 has 4 divisors (see below), whose sum is σ = 1021218394464. Its totient is φ = 1020828010000.

The previous prime is 1021023202139. The next prime is 1021023202247. The reversal of 1021023202231 is 1322023201201.

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

It is a cyclic number.

It is not a de Polignac number, because 1021023202231 - 2¹⁹ = 1021022677943 is a prime.

It is a super-2 number, since 2×1021023202231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021023202199 and 1021023202208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021023202831) 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, 97588270 + ... + 97598731.

It is an arithmetic number, because the mean of its divisors is an integer number (255304598616).

Almost surely, 2^{1021023202231} is an apocalyptic number.

1021023202231 is a deficient number, since it is larger than the sum of its proper divisors (195192233).

1021023202231 is an equidigital number, since it uses as much as digits as its factorization.

1021023202231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195192232.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1021023202231 its reverse (1322023201201), we get a palindrome (2343046403432).

The spelling of 1021023202231 in words is "one trillion, twenty-one billion, twenty-three million, two hundred two thousand, two hundred thirty-one".