20203112112 has 40 divisors (see below), whose sum is σ = 53464338480. Its totient is φ = 6570117120.

The previous prime is 20203112101. The next prime is 20203112143. The reversal of 20203112112 is 21121130202.

It is a super-2 number, since 2×20203112112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20203112091 and 20203112100.

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, 5130937 + ... + 5134872.

It is an arithmetic number, because the mean of its divisors is an integer number (1336608462).

Almost surely, 2^20203112112 is an apocalyptic number.

It is an amenable number.

20203112112 is an abundant number, since it is smaller than the sum of its proper divisors (33261226368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20203112112 is a wasteful number, since it uses less digits than its factorization.

20203112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10265861 (or 10265855 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20203112112 its reverse (21121130202), we get a palindrome (41324242314).

The spelling of 20203112112 in words is "twenty billion, two hundred three million, one hundred twelve thousand, one hundred twelve".