31432021100534 has 4 divisors (see below), whose sum is σ = 47148031650804. Its totient is φ = 15716010550266.

The previous prime is 31432021100453. The next prime is 31432021100537. The reversal of 31432021100534 is 43500112023413.

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

It is a junction number, because it is equal to n+sod(n) for n = 31432021100497 and 31432021100506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31432021100537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7858005275132 + ... + 7858005275135.

It is an arithmetic number, because the mean of its divisors is an integer number (11787007912701).

Almost surely, 2^{31432021100534} is an apocalyptic number.

31432021100534 is a deficient number, since it is larger than the sum of its proper divisors (15716010550270).

31432021100534 is a wasteful number, since it uses less digits than its factorization.

31432021100534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15716010550269.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 31432021100534 its reverse (43500112023413), we get a palindrome (74932133123947).

The spelling of 31432021100534 in words is "thirty-one trillion, four hundred thirty-two billion, twenty-one million, one hundred thousand, five hundred thirty-four".