10013537731 has 4 divisors (see below), whose sum is σ = 10057265200. Its totient is φ = 9969810264.

The previous prime is 10013537717. The next prime is 10013537747. The reversal of 10013537731 is 13773531001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10013537731 - 2⁷ = 10013537603 is a prime.

It is a super-2 number, since 2×10013537731² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10013537693 and 10013537702.

It is not an unprimeable number, because it can be changed into a prime (10013537701) 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, 21863391 + ... + 21863848.

It is an arithmetic number, because the mean of its divisors is an integer number (2514316300).

Almost surely, 2^10013537731 is an apocalyptic number.

10013537731 is a deficient number, since it is larger than the sum of its proper divisors (43727469).

10013537731 is an equidigital number, since it uses as much as digits as its factorization.

10013537731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43727468.

The product of its (nonzero) digits is 6615, while the sum is 31.

The spelling of 10013537731 in words is "ten billion, thirteen million, five hundred thirty-seven thousand, seven hundred thirty-one".