30213223031 has 2 divisors, whose sum is σ = 30213223032. Its totient is φ = 30213223030.

The previous prime is 30213222973. The next prime is 30213223037. The reversal of 30213223031 is 13032231203.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30213223031 - 2⁶ = 30213222967 is a prime.

It is a super-2 number, since 2×30213223031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30213222994 and 30213223012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30213223037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106611515 + 15106611516.

It is an arithmetic number, because the mean of its divisors is an integer number (15106611516).

Almost surely, 2^30213223031 is an apocalyptic number.

30213223031 is a deficient number, since it is larger than the sum of its proper divisors (1).

30213223031 is an equidigital number, since it uses as much as digits as its factorization.

30213223031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30213223031 its reverse (13032231203), we get a palindrome (43245454234).

The spelling of 30213223031 in words is "thirty billion, two hundred thirteen million, two hundred twenty-three thousand, thirty-one".