30213213031 has 16 divisors (see below), whose sum is σ = 30697128000. Its totient is φ = 29733285888.

The previous prime is 30213213007. The next prime is 30213213047. The reversal of 30213213031 is 13031231203.

It is a cyclic number.

It is not a de Polignac number, because 30213213031 - 2¹³ = 30213204839 is a prime.

It is a super-2 number, since 2×30213213031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30213213631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26760475 + ... + 26761603.

It is an arithmetic number, because the mean of its divisors is an integer number (1918570500).

Almost surely, 2^30213213031 is an apocalyptic number.

30213213031 is a deficient number, since it is larger than the sum of its proper divisors (483914969).

30213213031 is a wasteful number, since it uses less digits than its factorization.

30213213031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30213213031 its reverse (13031231203), we get a palindrome (43244444234).

The spelling of 30213213031 in words is "thirty billion, two hundred thirteen million, two hundred thirteen thousand, thirty-one".