2103131221431 has 16 divisors (see below), whose sum is σ = 2886210753888. Its totient is φ = 1361233987200.

The previous prime is 2103131221351. The next prime is 2103131221439. The reversal of 2103131221431 is 1341221313012.

It is not a de Polignac number, because 2103131221431 - 2⁹ = 2103131220919 is a prime.

It is a super-2 number, since 2×2103131221431² (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 (2103131221439) 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, 20498860 + ... + 20601201.

It is an arithmetic number, because the mean of its divisors is an integer number (180388172118).

Almost surely, 2^{2103131221431} is an apocalyptic number.

2103131221431 is a deficient number, since it is larger than the sum of its proper divisors (783079532457).

2103131221431 is a wasteful number, since it uses less digits than its factorization.

2103131221431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41100562.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 2103131221431 its reverse (1341221313012), we get a palindrome (3444352534443).

The spelling of 2103131221431 in words is "two trillion, one hundred three billion, one hundred thirty-one million, two hundred twenty-one thousand, four hundred thirty-one".