20315101500404 has 12 divisors (see below), whose sum is σ = 37642688074404. Its totient is φ = 9560047764864.

The previous prime is 20315101500389. The next prime is 20315101500409. The reversal of 20315101500404 is 40400510151302.

It can be written as a sum of positive squares in 2 ways, for example, as 11529746220304 + 8785355280100 = 3395548^2 + 2964010^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315101500409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149375746259 + ... + 149375746394.

It is an arithmetic number, because the mean of its divisors is an integer number (3136890672867).

Almost surely, 2^{20315101500404} is an apocalyptic number.

It is an amenable number.

20315101500404 is a deficient number, since it is larger than the sum of its proper divisors (17327586574000).

20315101500404 is a wasteful number, since it uses less digits than its factorization.

20315101500404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298751492674 (or 298751492672 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 20315101500404 its reverse (40400510151302), we get a palindrome (60715611651706).

The spelling of 20315101500404 in words is "twenty trillion, three hundred fifteen billion, one hundred one million, five hundred thousand, four hundred four".