351111331140240 has 160 divisors (see below), whose sum is σ = 1194504832797696. Its totient is φ = 84608210337280.

The previous prime is 351111331140233. The next prime is 351111331140247. The reversal of 351111331140240 is 42041133111153.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (351111331140233) and next prime (351111331140247).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 351111331140198 and 351111331140207.

It is not an unprimeable number, because it can be changed into a prime (351111331140247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397752882 + ... + 398634641.

Almost surely, 2^{351111331140240} is an apocalyptic number.

351111331140240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

351111331140240 is an abundant number, since it is smaller than the sum of its proper divisors (843393501657456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

351111331140240 is a wasteful number, since it uses less digits than its factorization.

351111331140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796387717 (or 796387711 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 351111331140240 its reverse (42041133111153), we get a palindrome (393152464251393).

The spelling of 351111331140240 in words is "three hundred fifty-one trillion, one hundred eleven billion, three hundred thirty-one million, one hundred forty thousand, two hundred forty".