10243142120 has 16 divisors (see below), whose sum is σ = 23047069860. Its totient is φ = 4097256832.

The previous prime is 10243142099. The next prime is 10243142137. The reversal of 10243142120 is 2124134201.

It can be written as a sum of positive squares in 2 ways, for example, as 9234825604 + 1008316516 = 96098^2 + 31754^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 10243142092 and 10243142101.

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, 128039237 + ... + 128039316.

Almost surely, 2^10243142120 is an apocalyptic number.

10243142120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10243142120 is an abundant number, since it is smaller than the sum of its proper divisors (12803927740).

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

10243142120 is a wasteful number, since it uses less digits than its factorization.

10243142120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256078564 (or 256078560 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10243142120 its reverse (2124134201), we get a palindrome (12367276321).

The spelling of 10243142120 in words is "ten billion, two hundred forty-three million, one hundred forty-two thousand, one hundred twenty".