8012020731 has 16 divisors (see below), whose sum is σ = 12550298880. Its totient is φ = 4482249120.

The previous prime is 8012020717. The next prime is 8012020741. The reversal of 8012020731 is 1370202108.

It is not a de Polignac number, because 8012020731 - 2⁷ = 8012020603 is a prime.

It is a super-2 number, since 2×8012020731² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8012020741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9337591 + ... + 9338448.

It is an arithmetic number, because the mean of its divisors is an integer number (784393680).

Almost surely, 2^8012020731 is an apocalyptic number.

8012020731 is a deficient number, since it is larger than the sum of its proper divisors (4538278149).

8012020731 is a wasteful number, since it uses less digits than its factorization.

8012020731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18676066.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 8012020731 is about 89509.8918053195. The cubic root of 8012020731 is about 2001.0012262727.

Adding to 8012020731 its reverse (1370202108), we get a palindrome (9382222839).

The spelling of 8012020731 in words is "eight billion, twelve million, twenty thousand, seven hundred thirty-one".