34131221142 has 16 divisors (see below), whose sum is σ = 68264253552. Its totient is φ = 11376771840.

The previous prime is 34131221099. The next prime is 34131221143. The reversal of 34131221142 is 24112213143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34131221143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397842 + ... + 475962.

It is an arithmetic number, because the mean of its divisors is an integer number (4266515847).

Almost surely, 2^34131221142 is an apocalyptic number.

34131221142 is an abundant number, since it is smaller than the sum of its proper divisors (34133032410).

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

34131221142 is a wasteful number, since it uses less digits than its factorization.

34131221142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150943.

The product of its digits is 1152, while the sum is 24.

Adding to 34131221142 its reverse (24112213143), we get a palindrome (58243434285).

The spelling of 34131221142 in words is "thirty-four billion, one hundred thirty-one million, two hundred twenty-one thousand, one hundred forty-two".