2105452433420 has 48 divisors (see below), whose sum is σ = 5053410626880. Its totient is φ = 721823007744.

The previous prime is 2105452433417. The next prime is 2105452433471. The reversal of 2105452433420 is 243342545012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 1738976 + ... + 2689784.

It is an arithmetic number, because the mean of its divisors is an integer number (105279388060).

Almost surely, 2^{2105452433420} is an apocalyptic number.

2105452433420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2105452433420 is an abundant number, since it is smaller than the sum of its proper divisors (2947958193460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2105452433420 is a wasteful number, since it uses less digits than its factorization.

2105452433420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966642 (or 966640 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 2105452433420 its reverse (243342545012), we get a palindrome (2348794978432).

The spelling of 2105452433420 in words is "two trillion, one hundred five billion, four hundred fifty-two million, four hundred thirty-three thousand, four hundred twenty".