1423213031142 has 128 divisors (see below), whose sum is σ = 3642963456000. Its totient is φ = 403443763200.

The previous prime is 1423213031131. The next prime is 1423213031159. The reversal of 1423213031142 is 2411303123241.

1423213031142 is a `hidden beast` number, since 14 + 232 + 1 + 303 + 114 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24658734 + ... + 24716382.

It is an arithmetic number, because the mean of its divisors is an integer number (28460652000).

Almost surely, 2^{1423213031142} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1423213031142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1821481728000).

1423213031142 is an abundant number, since it is smaller than the sum of its proper divisors (2219750424858).

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

1423213031142 is a wasteful number, since it uses less digits than its factorization.

1423213031142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58179 (or 58173 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1423213031142 its reverse (2411303123241), we get a palindrome (3834516154383).

The spelling of 1423213031142 in words is "one trillion, four hundred twenty-three billion, two hundred thirteen million, thirty-one thousand, one hundred forty-two".