223021331434 has 16 divisors (see below), whose sum is σ = 365192142336. Its totient is φ = 101304403200.

The previous prime is 223021331353. The next prime is 223021331437. The reversal of 223021331434 is 434133120322.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (223021331437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3413367 + ... + 3478090.

It is an arithmetic number, because the mean of its divisors is an integer number (22824508896).

Almost surely, 2^223021331434 is an apocalyptic number.

223021331434 is a deficient number, since it is larger than the sum of its proper divisors (142170810902).

223021331434 is a wasteful number, since it uses less digits than its factorization.

223021331434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892941.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 223021331434 its reverse (434133120322), we get a palindrome (657154451756).

It can be divided in two parts, 223021 and 331434, that added together give a palindrome (554455).

The spelling of 223021331434 in words is "two hundred twenty-three billion, twenty-one million, three hundred thirty-one thousand, four hundred thirty-four".