20130122070 has 24 divisors (see below), whose sum is σ = 52338317616. Its totient is φ = 5368032528.

The previous prime is 20130122069. The next prime is 20130122171. The reversal of 20130122070 is 7022103102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111833922 + ... + 111834101.

It is an arithmetic number, because the mean of its divisors is an integer number (2180763234).

Almost surely, 2^20130122070 is an apocalyptic number.

20130122070 is an abundant number, since it is smaller than the sum of its proper divisors (32208195546).

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

20130122070 is a wasteful number, since it uses less digits than its factorization.

20130122070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223668036 (or 223668033 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

Adding to 20130122070 its reverse (7022103102), we get a palindrome (27152225172).

The spelling of 20130122070 in words is "twenty billion, one hundred thirty million, one hundred twenty-two thousand, seventy".