2102355431 has 8 divisors (see below), whose sum is σ = 2293824000. Its totient is φ = 1910944440.

The previous prime is 2102355407. The next prime is 2102355481. The reversal of 2102355431 is 1345532012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2102355431 - 2¹⁰ = 2102354407 is a prime.

It is a super-2 number, since 2×2102355431² = 8839796716510391522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2102355431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102355481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105200 + ... + 123578.

It is an arithmetic number, because the mean of its divisors is an integer number (286728000).

Almost surely, 2^2102355431 is an apocalyptic number.

2102355431 is a deficient number, since it is larger than the sum of its proper divisors (191468569).

2102355431 is a wasteful number, since it uses less digits than its factorization.

2102355431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28789.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2102355431 is about 45851.4496063102. The cubic root of 2102355431 is about 1281.0577663893.

Adding to 2102355431 its reverse (1345532012), we get a palindrome (3447887443).

The spelling of 2102355431 in words is "two billion, one hundred two million, three hundred fifty-five thousand, four hundred thirty-one".