1023642223534 has 32 divisors (see below), whose sum is σ = 1756807130880. Its totient is φ = 438206044608.

The previous prime is 1023642223529. The next prime is 1023642223537. The reversal of 1023642223534 is 4353222463201.

It is a junction number, because it is equal to n+sod(n) for n = 1023642223493 and 1023642223502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023642223537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118651329 + ... + 118659955.

It is an arithmetic number, because the mean of its divisors is an integer number (54900222840).

Almost surely, 2^{1023642223534} is an apocalyptic number.

1023642223534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1023642223534 is a deficient number, since it is larger than the sum of its proper divisors (733164907346).

1023642223534 is a wasteful number, since it uses less digits than its factorization.

1023642223534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17272.

The product of its (nonzero) digits is 207360, while the sum is 37.

Adding to 1023642223534 its reverse (4353222463201), we get a palindrome (5376864686735).

The spelling of 1023642223534 in words is "one trillion, twenty-three billion, six hundred forty-two million, two hundred twenty-three thousand, five hundred thirty-four".