20514021315 has 16 divisors (see below), whose sum is σ = 32832608256. Its totient is φ = 10937420000.

The previous prime is 20514021277. The next prime is 20514021331. The reversal of 20514021315 is 51312041502.

It is a happy number.

It is not a de Polignac number, because 20514021315 - 2¹³ = 20514013123 is a prime.

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, 161571 + ... + 259100.

It is an arithmetic number, because the mean of its divisors is an integer number (2052038016).

Almost surely, 2^20514021315 is an apocalyptic number.

20514021315 is a deficient number, since it is larger than the sum of its proper divisors (12318586941).

20514021315 is a wasteful number, since it uses less digits than its factorization.

20514021315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423930.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 20514021315 its reverse (51312041502), we get a palindrome (71826062817).

The spelling of 20514021315 in words is "twenty billion, five hundred fourteen million, twenty-one thousand, three hundred fifteen".