20011004142 has 16 divisors (see below), whose sum is σ = 40036239360. Its totient is φ = 6667962872.

The previous prime is 20011004137. The next prime is 20011004161. The reversal of 20011004142 is 24140011002.

It is a super-2 number, since 2×20011004142² (a number of 21 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 7 ways as a sum of consecutive naturals, for example, 574638 + ... + 608465.

It is an arithmetic number, because the mean of its divisors is an integer number (2502264960).

Almost surely, 2^20011004142 is an apocalyptic number.

20011004142 is an abundant number, since it is smaller than the sum of its proper divisors (20025235218).

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

20011004142 is a wasteful number, since it uses less digits than its factorization.

20011004142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185927.

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

Adding to 20011004142 its reverse (24140011002), we get a palindrome (44151015144).

The spelling of 20011004142 in words is "twenty billion, eleven million, four thousand, one hundred forty-two".