142401432021111 has 20 divisors (see below), whose sum is σ = 214275850416672. Its totient is φ = 94241336999328.

The previous prime is 142401432021097. The next prime is 142401432021181. The reversal of 142401432021111 is 111120234104241.

142401432021111 is a `hidden beast` number, since 1 + 4 + 2 + 4 + 0 + 1 + 432 + 0 + 211 + 11 = 666.

It is not a de Polignac number, because 142401432021111 - 2⁶ = 142401432021047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142401432021181) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6416201935 + ... + 6416224128.

Almost surely, 2^{142401432021111} is an apocalyptic number.

142401432021111 is a deficient number, since it is larger than the sum of its proper divisors (71874418395561).

142401432021111 is a wasteful number, since it uses less digits than its factorization.

142401432021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12832426212 (or 12832426203 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 142401432021111 its reverse (111120234104241), we get a palindrome (253521666125352).

The spelling of 142401432021111 in words is "one hundred forty-two trillion, four hundred one billion, four hundred thirty-two million, twenty-one thousand, one hundred eleven".