20434323120 has 40 divisors (see below), whose sum is σ = 63346402416. Its totient is φ = 5449152768.

The previous prime is 20434323101. The next prime is 20434323121. The reversal of 20434323120 is 2132343402.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×20434323120² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20434323121) 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, 42571267 + ... + 42571746.

Almost surely, 2^20434323120 is an apocalyptic number.

20434323120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20434323120 is an abundant number, since it is smaller than the sum of its proper divisors (42912079296).

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

20434323120 is a wasteful number, since it uses less digits than its factorization.

20434323120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85143029 (or 85143023 counting only the distinct ones).

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

Adding to 20434323120 its reverse (2132343402), we get a palindrome (22566666522).

The spelling of 20434323120 in words is "twenty billion, four hundred thirty-four million, three hundred twenty-three thousand, one hundred twenty".