20010120994 has 16 divisors (see below), whose sum is σ = 31034016000. Its totient is φ = 9666503280.

The previous prime is 20010120983. The next prime is 20010121007. The reversal of 20010120994 is 49902101002.

It is a happy 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, 225244 + ... + 301255.

It is an arithmetic number, because the mean of its divisors is an integer number (1939626000).

Almost surely, 2^20010120994 is an apocalyptic number.

20010120994 is a deficient number, since it is larger than the sum of its proper divisors (11023895006).

20010120994 is a wasteful number, since it uses less digits than its factorization.

20010120994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527145.

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 20010120994 its reverse (49902101002), we get a palindrome (69912221996).

The spelling of 20010120994 in words is "twenty billion, ten million, one hundred twenty thousand, nine hundred ninety-four".