20401322334 has 16 divisors (see below), whose sum is σ = 40813907088. Its totient is φ = 6798563712.

The previous prime is 20401322309. The next prime is 20401322407. The reversal of 20401322334 is 43322310402.

It is a Curzon number.

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, 445627 + ... + 489270.

It is an arithmetic number, because the mean of its divisors is an integer number (2550869193).

Almost surely, 2^20401322334 is an apocalyptic number.

20401322334 is an abundant number, since it is smaller than the sum of its proper divisors (20412584754).

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

20401322334 is a wasteful number, since it uses less digits than its factorization.

20401322334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938539.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20401322334 its reverse (43322310402), we get a palindrome (63723632736).

The spelling of 20401322334 in words is "twenty billion, four hundred one million, three hundred twenty-two thousand, three hundred thirty-four".