20213142342342 has 32 divisors (see below), whose sum is σ = 42761811575808. Its totient is φ = 6356485498176.

The previous prime is 20213142342317. The next prime is 20213142342391. The reversal of 20213142342342 is 24324324131202.

It is a happy number.

It is a super-2 number, since 2×20213142342342² (a number of 27 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 15 ways as a sum of consecutive naturals, for example, 1003223118 + ... + 1003243265.

It is an arithmetic number, because the mean of its divisors is an integer number (1336306611744).

Almost surely, 2^{20213142342342} is an apocalyptic number.

20213142342342 is an abundant number, since it is smaller than the sum of its proper divisors (22548669233466).

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

20213142342342 is a wasteful number, since it uses less digits than its factorization.

20213142342342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006466484.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 20213142342342 its reverse (24324324131202), we get a palindrome (44537466473544).

The spelling of 20213142342342 in words is "twenty trillion, two hundred thirteen billion, one hundred forty-two million, three hundred forty-two thousand, three hundred forty-two".