340261532331 has 16 divisors (see below), whose sum is σ = 518750889984. Its totient is φ = 194338738944.

The previous prime is 340261532321. The next prime is 340261532393. The reversal of 340261532331 is 133235162043.

It is not a de Polignac number, because 340261532331 - 2¹⁰ = 340261531307 is a prime.

It is a super-2 number, since 2×340261532331² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 340261532292 and 340261532301.

It is not an unprimeable number, because it can be changed into a prime (340261532321) 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, 3974235 + ... + 4058948.

It is an arithmetic number, because the mean of its divisors is an integer number (32421930624).

Almost surely, 2^340261532331 is an apocalyptic number.

340261532331 is a deficient number, since it is larger than the sum of its proper divisors (178489357653).

340261532331 is a wasteful number, since it uses less digits than its factorization.

340261532331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8035210.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 340261532331 its reverse (133235162043), we get a palindrome (473496694374).

The spelling of 340261532331 in words is "three hundred forty billion, two hundred sixty-one million, five hundred thirty-two thousand, three hundred thirty-one".