20010120193 has 16 divisors (see below), whose sum is σ = 23024381184. Its totient is φ = 17034946560.

The previous prime is 20010120187. The next prime is 20010120211. The reversal of 20010120193 is 39102101002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20010120193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20010120193.

It is not an unprimeable number, because it can be changed into a prime (20010129193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1584721 + ... + 1597297.

It is an arithmetic number, because the mean of its divisors is an integer number (1439023824).

Almost surely, 2^20010120193 is an apocalyptic number.

It is an amenable number.

20010120193 is a deficient number, since it is larger than the sum of its proper divisors (3014260991).

20010120193 is a wasteful number, since it uses less digits than its factorization.

20010120193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14112.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 20010120193 its reverse (39102101002), we get a palindrome (59112221195).

The spelling of 20010120193 in words is "twenty billion, ten million, one hundred twenty thousand, one hundred ninety-three".