20213403333442 has 32 divisors (see below), whose sum is σ = 33100688044800. Its totient is φ = 9181186822800.

The previous prime is 20213403333419. The next prime is 20213403333467. The reversal of 20213403333442 is 24433330431202.

It is a junction number, because it is equal to n+sod(n) for n = 20213403333398 and 20213403333407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457512109 + ... + 457556287.

It is an arithmetic number, because the mean of its divisors is an integer number (1034396501400).

Almost surely, 2^{20213403333442} is an apocalyptic number.

20213403333442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20213403333442 is a deficient number, since it is larger than the sum of its proper divisors (12887284711358).

20213403333442 is a wasteful number, since it uses less digits than its factorization.

20213403333442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58942.

The product of its (nonzero) digits is 124416, while the sum is 34.

Adding to 20213403333442 its reverse (24433330431202), we get a palindrome (44646733764644).

The spelling of 20213403333442 in words is "twenty trillion, two hundred thirteen billion, four hundred three million, three hundred thirty-three thousand, four hundred forty-two".