20231400452 has 12 divisors (see below), whose sum is σ = 35406782796. Its totient is φ = 10115176800.

The previous prime is 20231400407. The next prime is 20231400481. The reversal of 20231400452 is 25400413202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7193414596 + 13037985856 = 84814^2 + 114184^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

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, 36299 + ... + 204402.

It is an arithmetic number, because the mean of its divisors is an integer number (2950565233).

Almost surely, 2^20231400452 is an apocalyptic number.

It is an amenable number.

20231400452 is a deficient number, since it is larger than the sum of its proper divisors (15175382344).

20231400452 is a wasteful number, since it uses less digits than its factorization.

20231400452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261718 (or 261716 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 20231400452 its reverse (25400413202), we get a palindrome (45631813654).

The spelling of 20231400452 in words is "twenty billion, two hundred thirty-one million, four hundred thousand, four hundred fifty-two".