20947320130 has 16 divisors (see below), whose sum is σ = 41132919744. Its totient is φ = 7617207280.

The previous prime is 20947320073. The next prime is 20947320137. The reversal of 20947320130 is 3102374902.

It is a junction number, because it is equal to n+sod(n) for n = 20947320092 and 20947320101.

It is not an unprimeable number, because it can be changed into a prime (20947320137) 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, 95214982 + ... + 95215201.

It is an arithmetic number, because the mean of its divisors is an integer number (2570807484).

Almost surely, 2^20947320130 is an apocalyptic number.

20947320130 is a deficient number, since it is larger than the sum of its proper divisors (20185599614).

20947320130 is a wasteful number, since it uses less digits than its factorization.

20947320130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190430201.

The product of its (nonzero) digits is 9072, while the sum is 31.

The spelling of 20947320130 in words is "twenty billion, nine hundred forty-seven million, three hundred twenty thousand, one hundred thirty".