201003112031020 has 48 divisors (see below), whose sum is σ = 457846601698080. Its totient is φ = 73682601762816.

The previous prime is 201003112030967. The next prime is 201003112031027. The reversal of 201003112031020 is 20130211300102.

It is a junction number, because it is equal to n+sod(n) for n = 201003112030985 and 201003112031003.

It is not an unprimeable number, because it can be changed into a prime (201003112031027) 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, 2780859157 + ... + 2780931436.

It is an arithmetic number, because the mean of its divisors is an integer number (9538470868710).

Almost surely, 2^{201003112031020} is an apocalyptic number.

201003112031020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201003112031020 is an abundant number, since it is smaller than the sum of its proper divisors (256843489667060).

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

201003112031020 is a wasteful number, since it uses less digits than its factorization.

201003112031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561790754 (or 5561790752 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 201003112031020 its reverse (20130211300102), we get a palindrome (221133323331122).

The spelling of 201003112031020 in words is "two hundred one trillion, three billion, one hundred twelve million, thirty-one thousand, twenty".