30302147223 has 20 divisors (see below), whose sum is σ = 45463867240. Its totient is φ = 20113203312.

The previous prime is 30302147221. The next prime is 30302147237. The reversal of 30302147223 is 32274120303.

It is not a de Polignac number, because 30302147223 - 2¹ = 30302147221 is a prime.

It is a super-2 number, since 2×30302147223² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30302147221) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 798265 + ... + 835362.

It is an arithmetic number, because the mean of its divisors is an integer number (2273193362).

Almost surely, 2^30302147223 is an apocalyptic number.

30302147223 is a deficient number, since it is larger than the sum of its proper divisors (15161720017).

30302147223 is a wasteful number, since it uses less digits than its factorization.

30302147223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633868 (or 1633859 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

Adding to 30302147223 its reverse (32274120303), we get a palindrome (62576267526).

The spelling of 30302147223 in words is "thirty billion, three hundred two million, one hundred forty-seven thousand, two hundred twenty-three".