1023221030452 has 12 divisors (see below), whose sum is σ = 1790644121476. Its totient is φ = 511608424320.

The previous prime is 1023221030413. The next prime is 1023221030473. The reversal of 1023221030452 is 2540301223201.

It can be written as a sum of positive squares in 2 ways, for example, as 590985787536 + 432235242916 = 768756^2 + 657446^2 .

It is a super-2 number, since 2×1023221030452² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1235302 + ... + 1890082.

Almost surely, 2^{1023221030452} is an apocalyptic number.

It is an amenable number.

1023221030452 is a deficient number, since it is larger than the sum of its proper divisors (767423091024).

1023221030452 is a wasteful number, since it uses less digits than its factorization.

1023221030452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045458 (or 1045456 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 1023221030452 its reverse (2540301223201), we get a palindrome (3563522253653).

The spelling of 1023221030452 in words is "one trillion, twenty-three billion, two hundred twenty-one million, thirty thousand, four hundred fifty-two".