30102343131 has 32 divisors (see below), whose sum is σ = 49462156800. Its totient is φ = 15898533120.

The previous prime is 30102343111. The next prime is 30102343211. The reversal of 30102343131 is 13134320103.

It is not a de Polignac number, because 30102343131 - 2⁶ = 30102343067 is a prime.

It is a super-2 number, since 2×30102343131² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 30102343098 and 30102343107.

It is not an unprimeable number, because it can be changed into a prime (30102343111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 903696 + ... + 936413.

It is an arithmetic number, because the mean of its divisors is an integer number (1545692400).

Almost surely, 2^30102343131 is an apocalyptic number.

30102343131 is a deficient number, since it is larger than the sum of its proper divisors (19359813669).

30102343131 is a wasteful number, since it uses less digits than its factorization.

30102343131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840179.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30102343131 its reverse (13134320103), we get a palindrome (43236663234).

The spelling of 30102343131 in words is "thirty billion, one hundred two million, three hundred forty-three thousand, one hundred thirty-one".