30311213010 has 288 divisors, whose sum is σ = 84848591232. Its totient is φ = 6924902400.

The previous prime is 30311212979. The next prime is 30311213011. The reversal of 30311213010 is 1031211303.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30311213011) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 200736435 + ... + 200736585.

It is an arithmetic number, because the mean of its divisors is an integer number (294613164).

Almost surely, 2^30311213010 is an apocalyptic number.

30311213010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30311213010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42424295616).

30311213010 is an abundant number, since it is smaller than the sum of its proper divisors (54537378222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30311213010 is a wasteful number, since it uses less digits than its factorization.

30311213010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 30311213010 its reverse (1031211303), we get a palindrome (31342424313).

The spelling of 30311213010 in words is "thirty billion, three hundred eleven million, two hundred thirteen thousand, ten".