103213143455 has 4 divisors (see below), whose sum is σ = 123855772152. Its totient is φ = 82570514760.

The previous prime is 103213143437. The next prime is 103213143461. The reversal of 103213143455 is 554341312301.

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

It is not a de Polignac number, because 103213143455 - 2⁶ = 103213143391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10321314341 + ... + 10321314350.

It is an arithmetic number, because the mean of its divisors is an integer number (30963943038).

Almost surely, 2^103213143455 is an apocalyptic number.

103213143455 is a deficient number, since it is larger than the sum of its proper divisors (20642628697).

103213143455 is an equidigital number, since it uses as much as digits as its factorization.

103213143455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20642628696.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 103213143455 its reverse (554341312301), we get a palindrome (657554455756).

The spelling of 103213143455 in words is "one hundred three billion, two hundred thirteen million, one hundred forty-three thousand, four hundred fifty-five".