255121041340 has 48 divisors (see below), whose sum is σ = 584498436480. Its totient is φ = 92765046080.

The previous prime is 255121041293. The next prime is 255121041349. The reversal of 255121041340 is 43140121552.

It is a junction number, because it is equal to n+sod(n) for n = 255121041299 and 255121041308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255121041349) 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, 4366359 + ... + 4424401.

It is an arithmetic number, because the mean of its divisors is an integer number (12177050760).

Almost surely, 2^255121041340 is an apocalyptic number.

255121041340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255121041340 is an abundant number, since it is smaller than the sum of its proper divisors (329377395140).

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

255121041340 is a wasteful number, since it uses less digits than its factorization.

255121041340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78042 (or 78040 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 255121041340 its reverse (43140121552), we get a palindrome (298261162892).

The spelling of 255121041340 in words is "two hundred fifty-five billion, one hundred twenty-one million, forty-one thousand, three hundred forty".