1020223534 has 16 divisors (see below), whose sum is σ = 1670232960. Its totient is φ = 463522360.

The previous prime is 1020223517. The next prime is 1020223573. The reversal of 1020223534 is 4353220201.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43737 + ... + 62875.

It is an arithmetic number, because the mean of its divisors is an integer number (104389560).

Almost surely, 2^1020223534 is an apocalyptic number.

1020223534 is a deficient number, since it is larger than the sum of its proper divisors (650009426).

1020223534 is a wasteful number, since it uses less digits than its factorization.

1020223534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21575.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1020223534 is about 31940.9382141477. The cubic root of 1020223534 is about 1006.6962383070.

Adding to 1020223534 its reverse (4353220201), we get a palindrome (5373443735).

The spelling of 1020223534 in words is "one billion, twenty million, two hundred twenty-three thousand, five hundred thirty-four".