71023453430 has 32 divisors (see below), whose sum is σ = 129903264000. Its totient is φ = 27952979040.

The previous prime is 71023453421. The next prime is 71023453441. The reversal of 71023453430 is 3435432017.

It is a congruent number.

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, 254057 + ... + 454523.

It is an arithmetic number, because the mean of its divisors is an integer number (4059477000).

Almost surely, 2^71023453430 is an apocalyptic number.

71023453430 is a deficient number, since it is larger than the sum of its proper divisors (58879810570).

71023453430 is a wasteful number, since it uses less digits than its factorization.

71023453430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201044.

The product of its (nonzero) digits is 30240, while the sum is 32.

Adding to 71023453430 its reverse (3435432017), we get a palindrome (74458885447).

The spelling of 71023453430 in words is "seventy-one billion, twenty-three million, four hundred fifty-three thousand, four hundred thirty".