20201142102 has 32 divisors (see below), whose sum is σ = 40969197792. Its totient is φ = 6639289344.

The previous prime is 20201142089. The next prime is 20201142107. The reversal of 20201142102 is 20124110202.

It is a super-2 number, since 2×20201142102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201142107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1841578 + ... + 1852514.

It is an arithmetic number, because the mean of its divisors is an integer number (1280287431).

Almost surely, 2^20201142102 is an apocalyptic number.

20201142102 is an abundant number, since it is smaller than the sum of its proper divisors (20768055690).

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

20201142102 is a wasteful number, since it uses less digits than its factorization.

20201142102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15232.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20201142102 its reverse (20124110202), we get a palindrome (40325252304).

The spelling of 20201142102 in words is "twenty billion, two hundred one million, one hundred forty-two thousand, one hundred two".