30515040212 has 24 divisors (see below), whose sum is σ = 56217601440. Its totient is φ = 14453030880.

The previous prime is 30515040203. The next prime is 30515040251. The reversal of 30515040212 is 21204051503.

It is a super-3 number, since 3×30515040212³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1282262 + ... + 1305842.

It is an arithmetic number, because the mean of its divisors is an integer number (2342400060).

Almost surely, 2^30515040212 is an apocalyptic number.

It is an amenable number.

30515040212 is a deficient number, since it is larger than the sum of its proper divisors (25702561228).

30515040212 is a wasteful number, since it uses less digits than its factorization.

30515040212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40631 (or 40629 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 30515040212 its reverse (21204051503), we get a palindrome (51719091715).

The spelling of 30515040212 in words is "thirty billion, five hundred fifteen million, forty thousand, two hundred twelve".