20000003120 has 40 divisors (see below), whose sum is σ = 48103461360. Its totient is φ = 7724138240.

The previous prime is 20000003069. The next prime is 20000003137. The reversal of 20000003120 is 2130000002.

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

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 20000003098 and 20000003107.

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, 4308026 + ... + 4312665.

It is an arithmetic number, because the mean of its divisors is an integer number (1202586534).

Almost surely, 2^20000003120 is an apocalyptic number.

20000003120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000003120 is an abundant number, since it is smaller than the sum of its proper divisors (28103458240).

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

20000003120 is a wasteful number, since it uses less digits than its factorization.

20000003120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8620733 (or 8620727 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

Adding to 20000003120 its reverse (2130000002), we get a palindrome (22130003122).

The spelling of 20000003120 in words is "twenty billion, three thousand, one hundred twenty".