355420340131 has 4 divisors (see below), whose sum is σ = 356475000232. Its totient is φ = 354365680032.

The previous prime is 355420340101. The next prime is 355420340173. The reversal of 355420340131 is 131043024553.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 355420340131 - 2¹⁷ = 355420209059 is a prime.

It is a super-2 number, since 2×355420340131² (a number of 24 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 = 355420340093 and 355420340102.

It is not an unprimeable number, because it can be changed into a prime (355420340101) 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, 527329545 + ... + 527330218.

It is an arithmetic number, because the mean of its divisors is an integer number (89118750058).

Almost surely, 2^355420340131 is an apocalyptic number.

355420340131 is a deficient number, since it is larger than the sum of its proper divisors (1054660101).

355420340131 is a wasteful number, since it uses less digits than its factorization.

355420340131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054660100.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 355420340131 its reverse (131043024553), we get a palindrome (486463364684).

The spelling of 355420340131 in words is "three hundred fifty-five billion, four hundred twenty million, three hundred forty thousand, one hundred thirty-one".