10123020 has 36 divisors (see below), whose sum is σ = 30707040. Its totient is φ = 2699424.

The previous prime is 10122997. The next prime is 10123021. The reversal of 10123020 is 2032101.

It is a happy number.

10123020 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10122993 and 10123011.

It is not an unprimeable number, because it can be changed into a prime (10123021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27940 + ... + 28299.

Almost surely, 2^10123020 is an apocalyptic number.

10123020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10123020 is an abundant number, since it is smaller than the sum of its proper divisors (20584020).

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

10123020 is a wasteful number, since it uses less digits than its factorization.

10123020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56254 (or 56249 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 10123020 is about 3181.6693731436. The cubic root of 10123020 is about 216.3233326310.

Adding to 10123020 its reverse (2032101), we get a palindrome (12155121).

The spelling of 10123020 in words is "ten million, one hundred twenty-three thousand, twenty".