10142302681 has 9 divisors (see below), whose sum is σ = 11799008949. Its totient is φ = 8692798044.

The previous prime is 10142302661. The next prime is 10142302721. The reversal of 10142302681 is 18620324101.

The square root of 10142302681 is 100709.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-10142302681 is a prime.

It is a super-2 number, since 2×10142302681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10142302661) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 697770 + ... + 712156.

Almost surely, 2^10142302681 is an apocalyptic number.

10142302681 is the 100709-th square number.

10142302681 is the 50355-th centered octagonal number.

It is an amenable number.

10142302681 is a deficient number, since it is larger than the sum of its proper divisors (1656706268).

10142302681 is an frugal number, since it uses more digits than its factorization.

10142302681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28788 (or 14394 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

Multiplying 10142302681 by its product of nonzero digits (2304), we get a square (23367865377024 = 4834032²).

Adding to 10142302681 its reverse (18620324101), we get a palindrome (28762626782).

The spelling of 10142302681 in words is "ten billion, one hundred forty-two million, three hundred two thousand, six hundred eighty-one".