2021101342431 has 32 divisors (see below), whose sum is σ = 2797505726400. Its totient is φ = 1296382510080.

The previous prime is 2021101342427. The next prime is 2021101342483. The reversal of 2021101342431 is 1342431011202.

It is not a de Polignac number, because 2021101342431 - 2² = 2021101342427 is a prime.

It is a super-2 number, since 2×2021101342431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021101342231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30327715 + ... + 30394283.

It is an arithmetic number, because the mean of its divisors is an integer number (87422053950).

Almost surely, 2^{2021101342431} is an apocalyptic number.

2021101342431 is a deficient number, since it is larger than the sum of its proper divisors (776404383969).

2021101342431 is a wasteful number, since it uses less digits than its factorization.

2021101342431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67819.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 2021101342431 its reverse (1342431011202), we get a palindrome (3363532353633).

The spelling of 2021101342431 in words is "two trillion, twenty-one billion, one hundred one million, three hundred forty-two thousand, four hundred thirty-one".