2023203021534 has 64 divisors (see below), whose sum is σ = 4536314210880. Its totient is φ = 668356254720.

The previous prime is 2023203021533. The next prime is 2023203021547. The reversal of 2023203021534 is 4351203023202.

2023203021534 is a `hidden beast` number, since 2 + 0 + 2 + 320 + 302 + 1 + 5 + 34 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2023203021498 and 2023203021507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023203021533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82834644 + ... + 82859064.

It is an arithmetic number, because the mean of its divisors is an integer number (70879909545).

Almost surely, 2^{2023203021534} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2023203021534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2268157105440).

2023203021534 is an abundant number, since it is smaller than the sum of its proper divisors (2513111189346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2023203021534 is a wasteful number, since it uses less digits than its factorization.

2023203021534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38122 (or 38116 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 2023203021534 its reverse (4351203023202), we get a palindrome (6374406044736).

The spelling of 2023203021534 in words is "two trillion, twenty-three billion, two hundred three million, twenty-one thousand, five hundred thirty-four".