20103318511470 has 48 divisors (see below), whose sum is σ = 52644661458480. Its totient is φ = 5322317415552.

The previous prime is 20103318511379. The next prime is 20103318511487. The reversal of 20103318511470 is 7411581330102.

20103318511470 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 3 + 3 + 185 + 1 + 1 + 470 = 666.

It is a super-2 number, since 2×20103318511470² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 803477439 + ... + 803502458.

It is an arithmetic number, because the mean of its divisors is an integer number (1096763780385).

Almost surely, 2^{20103318511470} is an apocalyptic number.

20103318511470 is an abundant number, since it is smaller than the sum of its proper divisors (32541342947010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20103318511470 is a wasteful number, since it uses less digits than its factorization.

20103318511470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606980049 (or 1606980046 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

Adding to 20103318511470 its reverse (7411581330102), we get a palindrome (27514899841572).

The spelling of 20103318511470 in words is "twenty trillion, one hundred three billion, three hundred eighteen million, five hundred eleven thousand, four hundred seventy".