20003121190 has 16 divisors (see below), whose sum is σ = 38775281328. Its totient is φ = 7385767776.

The previous prime is 20003121161. The next prime is 20003121191. The reversal of 20003121190 is 9112130002.

It is a super-2 number, since 2×20003121190² (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 (20003121191) 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, 76934952 + ... + 76935211.

It is an arithmetic number, because the mean of its divisors is an integer number (2423455083).

Almost surely, 2^20003121190 is an apocalyptic number.

20003121190 is a deficient number, since it is larger than the sum of its proper divisors (18772160138).

20003121190 is a wasteful number, since it uses less digits than its factorization.

20003121190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153870183.

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

Adding to 20003121190 its reverse (9112130002), we get a palindrome (29115251192).

The spelling of 20003121190 in words is "twenty billion, three million, one hundred twenty-one thousand, one hundred ninety".