31356465141223 has 4 divisors (see below), whose sum is σ = 31467265371688. Its totient is φ = 31245664910760.

The previous prime is 31356465141193. The next prime is 31356465141263. The reversal of 31356465141223 is 32214156465313.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31356465141223 - 2¹⁷ = 31356465010151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31356465141263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55400114808 + ... + 55400115373.

It is an arithmetic number, because the mean of its divisors is an integer number (7866816342922).

Almost surely, 2^{31356465141223} is an apocalyptic number.

31356465141223 is a deficient number, since it is larger than the sum of its proper divisors (110800230465).

31356465141223 is a wasteful number, since it uses less digits than its factorization.

31356465141223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110800230464.

The product of its digits is 1555200, while the sum is 46.

The spelling of 31356465141223 in words is "thirty-one trillion, three hundred fifty-six billion, four hundred sixty-five million, one hundred forty-one thousand, two hundred twenty-three".