340242043002131 has 16 divisors (see below), whose sum is σ = 354456333202848. Its totient is φ = 326405261952000.

The previous prime is 340242043002109. The next prime is 340242043002157. The reversal of 340242043002131 is 131200340242043.

It is a cyclic number.

It is not a de Polignac number, because 340242043002131 - 2⁴² = 335843996491027 is a prime.

It is a super-2 number, since 2×340242043002131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340242043002094 and 340242043002103.

It is not an unprimeable number, because it can be changed into a prime (340242043007131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411715070 + ... + 412540643.

It is an arithmetic number, because the mean of its divisors is an integer number (22153520825178).

Almost surely, 2^{340242043002131} is an apocalyptic number.

340242043002131 is a deficient number, since it is larger than the sum of its proper divisors (14214290200717).

340242043002131 is a wasteful number, since it uses less digits than its factorization.

340242043002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824255942.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 340242043002131 its reverse (131200340242043), we get a palindrome (471442383244174).

The spelling of 340242043002131 in words is "three hundred forty trillion, two hundred forty-two billion, forty-three million, two thousand, one hundred thirty-one".