34131004021 has 4 divisors (see below), whose sum is σ = 34159424044. Its totient is φ = 34102584000.

The previous prime is 34131003983. The next prime is 34131004049. The reversal of 34131004021 is 12040013143.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12040013143 = 29 ⋅415172867.

It can be written as a sum of positive squares in 2 ways, for example, as 2186591121 + 31944412900 = 46761^2 + 178730^2 .

It is a cyclic number.

It is not a de Polignac number, because 34131004021 - 2⁹ = 34131003509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34131004021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34131304021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14208210 + ... + 14210611.

It is an arithmetic number, because the mean of its divisors is an integer number (8539856011).

Almost surely, 2^34131004021 is an apocalyptic number.

It is an amenable number.

34131004021 is a deficient number, since it is larger than the sum of its proper divisors (28420023).

34131004021 is a wasteful number, since it uses less digits than its factorization.

34131004021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28420022.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 34131004021 its reverse (12040013143), we get a palindrome (46171017164).

The spelling of 34131004021 in words is "thirty-four billion, one hundred thirty-one million, four thousand, twenty-one".