315221012030 has 32 divisors (see below), whose sum is σ = 600613596000. Its totient is φ = 118909348992.

The previous prime is 315221012027. The next prime is 315221012053. The reversal of 315221012030 is 30210122513.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 315221011993 and 315221012011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12626705 + ... + 12651644.

It is an arithmetic number, because the mean of its divisors is an integer number (18769174875).

Almost surely, 2^315221012030 is an apocalyptic number.

315221012030 is a deficient number, since it is larger than the sum of its proper divisors (285392583970).

315221012030 is a wasteful number, since it uses less digits than its factorization.

315221012030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25278428.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 315221012030 its reverse (30210122513), we get a palindrome (345431134543).

The spelling of 315221012030 in words is "three hundred fifteen billion, two hundred twenty-one million, twelve thousand, thirty".