1020420101112 has 32 divisors (see below), whose sum is σ = 2551075015680. Its totient is φ = 340136732000.

The previous prime is 1020420101083. The next prime is 1020420101123. The reversal of 1020420101112 is 2111010240201.

It is a super-3 number, since 3×1020420101112³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020420101091 and 1020420101100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4650793 + ... + 4865255.

It is an arithmetic number, because the mean of its divisors is an integer number (79721094240).

Almost surely, 2^{1020420101112} is an apocalyptic number.

1020420101112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020420101112 is an abundant number, since it is smaller than the sum of its proper divisors (1530654914568).

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

1020420101112 is a wasteful number, since it uses less digits than its factorization.

1020420101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412723 (or 412719 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1020420101112 its reverse (2111010240201), we get a palindrome (3131430341313).

The spelling of 1020420101112 in words is "one trillion, twenty billion, four hundred twenty million, one hundred one thousand, one hundred twelve".