2101342344431 has 4 divisors (see below), whose sum is σ = 2292373466664. Its totient is φ = 1910311222200.

The previous prime is 2101342344379. The next prime is 2101342344449. The reversal of 2101342344431 is 1344432431012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101342344431 is a prime.

It is a super-2 number, since 2×2101342344431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101342344131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95515561100 + ... + 95515561121.

It is an arithmetic number, because the mean of its divisors is an integer number (573093366666).

Almost surely, 2^{2101342344431} is an apocalyptic number.

2101342344431 is a deficient number, since it is larger than the sum of its proper divisors (191031122233).

2101342344431 is a wasteful number, since it uses less digits than its factorization.

2101342344431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191031122232.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 2101342344431 its reverse (1344432431012), we get a palindrome (3445774775443).

The spelling of 2101342344431 in words is "two trillion, one hundred one billion, three hundred forty-two million, three hundred forty-four thousand, four hundred thirty-one".