10123720148 has 12 divisors (see below), whose sum is σ = 17759829780. Its totient is φ = 5049483072.

The previous prime is 10123720121. The next prime is 10123720157. The reversal of 10123720148 is 84102732101.

It can be written as a sum of positive squares in 2 ways, for example, as 5245815184 + 4877904964 = 72428^2 + 69842^2 .

It is a super-2 number, since 2×10123720148² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10123720148.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3092411 + ... + 3095682.

It is an arithmetic number, because the mean of its divisors is an integer number (1479985815).

Almost surely, 2^10123720148 is an apocalyptic number.

It is an amenable number.

10123720148 is a deficient number, since it is larger than the sum of its proper divisors (7636109632).

10123720148 is a wasteful number, since it uses less digits than its factorization.

10123720148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6188506 (or 6188504 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The spelling of 10123720148 in words is "ten billion, one hundred twenty-three million, seven hundred twenty thousand, one hundred forty-eight".