2105431142055 has 16 divisors (see below), whose sum is σ = 3368770389600. Its totient is φ = 1122869755008.

The previous prime is 2105431142041. The next prime is 2105431142069. The reversal of 2105431142055 is 5502411345012.

It is an interprime number because it is at equal distance from previous prime (2105431142041) and next prime (2105431142069).

It is not a de Polignac number, because 2105431142055 - 2¹² = 2105431137959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021972 + ... + 2292441.

It is an arithmetic number, because the mean of its divisors is an integer number (210548149350).

Almost surely, 2^{2105431142055} is an apocalyptic number.

2105431142055 is a deficient number, since it is larger than the sum of its proper divisors (1263339247545).

2105431142055 is a wasteful number, since it uses less digits than its factorization.

2105431142055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356770.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 2105431142055 its reverse (5502411345012), we get a palindrome (7607842487067).

The spelling of 2105431142055 in words is "two trillion, one hundred five billion, four hundred thirty-one million, one hundred forty-two thousand, fifty-five".