10213240531 has 4 divisors (see below), whose sum is σ = 10998874432. Its totient is φ = 9427606632.

The previous prime is 10213240519. The next prime is 10213240547. The reversal of 10213240531 is 13504231201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13504231201 = 23 ⋅587140487.

It is a cyclic number.

It is not a de Polignac number, because 10213240531 - 2²¹ = 10211143379 is a prime.

It is a super-2 number, since 2×10213240531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10213240511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392816931 + ... + 392816956.

It is an arithmetic number, because the mean of its divisors is an integer number (2749718608).

Almost surely, 2^10213240531 is an apocalyptic number.

10213240531 is a deficient number, since it is larger than the sum of its proper divisors (785633901).

10213240531 is an equidigital number, since it uses as much as digits as its factorization.

10213240531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785633900.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 10213240531 its reverse (13504231201), we get a palindrome (23717471732).

The spelling of 10213240531 in words is "ten billion, two hundred thirteen million, two hundred forty thousand, five hundred thirty-one".