315021120001 has 36 divisors (see below), whose sum is σ = 374808743316. Its totient is φ = 263903989440.

The previous prime is 315021119939. The next prime is 315021120013. The reversal of 315021120001 is 100021120513.

It can be written as a sum of positive squares in 2 ways, for example, as 149131902976 + 165889217025 = 386176^2 + 407295^2 .

It is not a de Polignac number, because 315021120001 - 2¹⁵ = 315021087233 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315021120301) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 482420991 + ... + 482421643.

It is an arithmetic number, because the mean of its divisors is an integer number (10411353981).

Almost surely, 2^315021120001 is an apocalyptic number.

It is an amenable number.

315021120001 is a deficient number, since it is larger than the sum of its proper divisors (59787623315).

315021120001 is an frugal number, since it uses more digits than its factorization.

315021120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

Adding to 315021120001 its reverse (100021120513), we get a palindrome (415042240514).

The spelling of 315021120001 in words is "three hundred fifteen billion, twenty-one million, one hundred twenty thousand, one".