340412312021331 has 16 divisors (see below), whose sum is σ = 495145939321728. Its totient is φ = 206310176217600.

The previous prime is 340412312021329. The next prime is 340412312021357. The reversal of 340412312021331 is 133120213214043.

It is not a de Polignac number, because 340412312021331 - 2¹ = 340412312021329 is a prime.

It is a super-2 number, since 2×340412312021331² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340412312021381) 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, 14967411 + ... + 30080691.

It is an arithmetic number, because the mean of its divisors is an integer number (30946621207608).

Almost surely, 2^{340412312021331} is an apocalyptic number.

340412312021331 is a deficient number, since it is larger than the sum of its proper divisors (154733627300397).

340412312021331 is a wasteful number, since it uses less digits than its factorization.

340412312021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15795842.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 340412312021331 its reverse (133120213214043), we get a palindrome (473532525235374).

The spelling of 340412312021331 in words is "three hundred forty trillion, four hundred twelve billion, three hundred twelve million, twenty-one thousand, three hundred thirty-one".