123010011020 has 24 divisors (see below), whose sum is σ = 278191871664. Its totient is φ = 45419080896.

The previous prime is 123010010989. The next prime is 123010011053. The reversal of 123010011020 is 20110010321.

It is a super-2 number, since 2×123010011020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123010010992 and 123010011010.

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, 236557454 + ... + 236557973.

It is an arithmetic number, because the mean of its divisors is an integer number (11591327986).

Almost surely, 2^123010011020 is an apocalyptic number.

123010011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123010011020 is an abundant number, since it is smaller than the sum of its proper divisors (155181860644).

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

123010011020 is a wasteful number, since it uses less digits than its factorization.

123010011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473115449 (or 473115447 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 123010011020 its reverse (20110010321), we get a palindrome (143120021341).

The spelling of 123010011020 in words is "one hundred twenty-three billion, ten million, eleven thousand, twenty".