10123035140 has 12 divisors (see below), whose sum is σ = 21258373836. Its totient is φ = 4049214048.

The previous prime is 10123035121. The next prime is 10123035211. The reversal of 10123035140 is 4153032101.

It can be written as a sum of positive squares in 2 ways, for example, as 3148780996 + 6974254144 = 56114^2 + 83512^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 506151757 = 10123035140 / (1 + 0 + 1 + 2 + 3 + 0 + 3 + 5 + 1 + 4 + 0).

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, 253075859 + ... + 253075898.

It is an arithmetic number, because the mean of its divisors is an integer number (1771531153).

Almost surely, 2^10123035140 is an apocalyptic number.

10123035140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10123035140 is an abundant number, since it is smaller than the sum of its proper divisors (11135338696).

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

10123035140 is a wasteful number, since it uses less digits than its factorization.

10123035140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506151766 (or 506151764 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 10123035140 its reverse (4153032101), we get a palindrome (14276067241).

The spelling of 10123035140 in words is "ten billion, one hundred twenty-three million, thirty-five thousand, one hundred forty".