1025431341355 has 4 divisors (see below), whose sum is σ = 1230517609632. Its totient is φ = 820345073080.

The previous prime is 1025431341301. The next prime is 1025431341367. The reversal of 1025431341355 is 5531431345201.

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

It is not a de Polignac number, because 1025431341355 - 2¹⁷ = 1025431210283 is a prime.

It is a super-2 number, since 2×1025431341355² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102543134131 + ... + 102543134140.

It is an arithmetic number, because the mean of its divisors is an integer number (307629402408).

Almost surely, 2^{1025431341355} is an apocalyptic number.

1025431341355 is a deficient number, since it is larger than the sum of its proper divisors (205086268277).

1025431341355 is an equidigital number, since it uses as much as digits as its factorization.

1025431341355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205086268276.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 1025431341355 its reverse (5531431345201), we get a palindrome (6556862686556).

The spelling of 1025431341355 in words is "one trillion, twenty-five billion, four hundred thirty-one million, three hundred forty-one thousand, three hundred fifty-five".