20123310190 has 16 divisors (see below), whose sum is σ = 37796826528. Its totient is φ = 7699353376.

The previous prime is 20123310173. The next prime is 20123310197. The reversal of 20123310190 is 9101332102.

It is a super-2 number, since 2×20123310190² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123310197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43746097 + ... + 43746556.

It is an arithmetic number, because the mean of its divisors is an integer number (2362301658).

Almost surely, 2^20123310190 is an apocalyptic number.

20123310190 is a deficient number, since it is larger than the sum of its proper divisors (17673516338).

20123310190 is a wasteful number, since it uses less digits than its factorization.

20123310190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87492683.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 20123310190 its reverse (9101332102), we get a palindrome (29224642292).

The spelling of 20123310190 in words is "twenty billion, one hundred twenty-three million, three hundred ten thousand, one hundred ninety".