4721393131 has 16 divisors (see below), whose sum is σ = 5934587904. Its totient is φ = 3656123424.

The previous prime is 4721393113. The next prime is 4721393143. The reversal of 4721393131 is 1313931274.

It is a cyclic number.

It is not a de Polignac number, because 4721393131 - 2¹¹ = 4721391083 is a prime.

It is a super-2 number, since 2×4721393131² = 44583106194907966322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4721393101) 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, 547675 + ... + 556228.

It is an arithmetic number, because the mean of its divisors is an integer number (370911744).

Almost surely, 2^4721393131 is an apocalyptic number.

4721393131 is a deficient number, since it is larger than the sum of its proper divisors (1213194773).

4721393131 is a wasteful number, since it uses less digits than its factorization.

4721393131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103970.

The product of its digits is 13608, while the sum is 34.

The square root of 4721393131 is about 68712.3943040846. The cubic root of 4721393131 is about 1677.6063240629.

The spelling of 4721393131 in words is "four billion, seven hundred twenty-one million, three hundred ninety-three thousand, one hundred thirty-one".