126112020 has 24 divisors (see below), whose sum is σ = 353113824. Its totient is φ = 33629856.

The previous prime is 126112009. The next prime is 126112027. The reversal of 126112020 is 20211621.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126112027) 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, 1050874 + ... + 1050993.

It is an arithmetic number, because the mean of its divisors is an integer number (14713076).

Almost surely, 2^126112020 is an apocalyptic number.

126112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126112020 is an abundant number, since it is smaller than the sum of its proper divisors (227001804).

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

126112020 is a wasteful number, since it uses less digits than its factorization.

126112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101879 (or 2101877 counting only the distinct ones).

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

The square root of 126112020 is about 11229.9608191658. The cubic root of 126112020 is about 501.4783181764.

Adding to 126112020 its reverse (20211621), we get a palindrome (146323641).

The spelling of 126112020 in words is "one hundred twenty-six million, one hundred twelve thousand, twenty".