10143123140 has 12 divisors (see below), whose sum is σ = 21300558636. Its totient is φ = 4057249248.

The previous prime is 10143123113. The next prime is 10143123161. The reversal of 10143123140 is 4132134101.

It can be written as a sum of positive squares in 2 ways, for example, as 5384330884 + 4758792256 = 73378^2 + 68984^2 .

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: 507156157 = 10143123140 / (1 + 0 + 1 + 4 + 3 + 1 + 2 + 3 + 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, 253578059 + ... + 253578098.

It is an arithmetic number, because the mean of its divisors is an integer number (1775046553).

Almost surely, 2^10143123140 is an apocalyptic number.

10143123140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10143123140 is an abundant number, since it is smaller than the sum of its proper divisors (11157435496).

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

10143123140 is a wasteful number, since it uses less digits than its factorization.

10143123140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507156166 (or 507156164 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 10143123140 its reverse (4132134101), we get a palindrome (14275257241).

The spelling of 10143123140 in words is "ten billion, one hundred forty-three million, one hundred twenty-three thousand, one hundred forty".