30343521031 has 16 divisors (see below), whose sum is σ = 31749003648. Its totient is φ = 28971129600.

The previous prime is 30343521011. The next prime is 30343521049. The reversal of 30343521031 is 13012534303.

It is a cyclic number.

It is not a de Polignac number, because 30343521031 - 2¹⁷ = 30343389959 is a prime.

It is a super-2 number, since 2×30343521031² (a number of 22 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 = 30343520987 and 30343521005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30343521011) 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, 957171 + ... + 988363.

It is an arithmetic number, because the mean of its divisors is an integer number (1984312728).

Almost surely, 2^30343521031 is an apocalyptic number.

30343521031 is a deficient number, since it is larger than the sum of its proper divisors (1405482617).

30343521031 is a wasteful number, since it uses less digits than its factorization.

30343521031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31722.

The product of its (nonzero) digits is 3240, while the sum is 25.

The spelling of 30343521031 in words is "thirty billion, three hundred forty-three million, five hundred twenty-one thousand, thirty-one".