20520213122114 has 4 divisors (see below), whose sum is σ = 30780319683174. Its totient is φ = 10260106561056.

The previous prime is 20520213122111. The next prime is 20520213122137. The reversal of 20520213122114 is 41122131202502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12529228312225 + 7990984809889 = 3539665^2 + 2826833^2 .

It is not an unprimeable number, because it can be changed into a prime (20520213122111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5130053280527 + ... + 5130053280530.

Almost surely, 2^{20520213122114} is an apocalyptic number.

20520213122114 is a deficient number, since it is larger than the sum of its proper divisors (10260106561060).

20520213122114 is a wasteful number, since it uses less digits than its factorization.

20520213122114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10260106561059.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 20520213122114 its reverse (41122131202502), we get a palindrome (61642344324616).

The spelling of 20520213122114 in words is "twenty trillion, five hundred twenty billion, two hundred thirteen million, one hundred twenty-two thousand, one hundred fourteen".