126311020 has 48 divisors (see below), whose sum is σ = 306397728. Its totient is φ = 43228160.

The previous prime is 126310999. The next prime is 126311027. The reversal of 126311020 is 20113621.

It is a junction number, because it is equal to n+sod(n) for n = 126310985 and 126311003.

It is not an unprimeable number, because it can be changed into a prime (126311027) 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, 13147 + ... + 20626.

It is an arithmetic number, because the mean of its divisors is an integer number (6383286).

Almost surely, 2^126311020 is an apocalyptic number.

126311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126311020 is an abundant number, since it is smaller than the sum of its proper divisors (180086708).

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

126311020 is a wasteful number, since it uses less digits than its factorization.

126311020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33810 (or 33808 counting only the distinct ones).

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

The square root of 126311020 is about 11238.8175534618. The cubic root of 126311020 is about 501.7419508336.

Adding to 126311020 its reverse (20113621), we get a palindrome (146424641).

The spelling of 126311020 in words is "one hundred twenty-six million, three hundred eleven thousand, twenty".