142520011101 has 24 divisors (see below), whose sum is σ = 222823200600. Its totient is φ = 87259406976.

The previous prime is 142520011091. The next prime is 142520011133. The reversal of 142520011101 is 101110025241.

142520011101 is a `hidden beast` number, since 1 + 42 + 520 + 0 + 1 + 1 + 101 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8190431001 + 134329580100 = 90501^2 + 366510^2 .

It is not a de Polignac number, because 142520011101 - 2⁵ = 142520011069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142520011001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3068626 + ... + 3114723.

It is an arithmetic number, because the mean of its divisors is an integer number (9284300025).

Almost surely, 2^142520011101 is an apocalyptic number.

It is an amenable number.

142520011101 is a deficient number, since it is larger than the sum of its proper divisors (80303189499).

142520011101 is a wasteful number, since it uses less digits than its factorization.

142520011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6183565 (or 6183562 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 142520011101 its reverse (101110025241), we get a palindrome (243630036342).

The spelling of 142520011101 in words is "one hundred forty-two billion, five hundred twenty million, eleven thousand, one hundred one".