9992002031 has 4 divisors (see below), whose sum is σ = 10900365864. Its totient is φ = 9083638200.

The previous prime is 9992002021. The next prime is 9992002051. The reversal of 9992002031 is 1302002999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1302002999 = 11 ⋅118363909.

It is a cyclic number.

It is not a de Polignac number, because 9992002031 - 2¹⁸ = 9991739887 is a prime.

It is a super-2 number, since 2×9992002031² (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 = 9992001982 and 9992002000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9992002021) 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, 454181900 + ... + 454181921.

It is an arithmetic number, because the mean of its divisors is an integer number (2725091466).

Almost surely, 2^9992002031 is an apocalyptic number.

9992002031 is a deficient number, since it is larger than the sum of its proper divisors (908363833).

9992002031 is a wasteful number, since it uses less digits than its factorization.

9992002031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908363832.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 9992002031 is about 99960.0021558623. The cubic root of 9992002031 is about 2153.8601667752.

The spelling of 9992002031 in words is "nine billion, nine hundred ninety-two million, two thousand, thirty-one".