133421212333031 has 4 divisors (see below), whose sum is σ = 152481385523472. Its totient is φ = 114361039142592.

The previous prime is 133421212332997. The next prime is 133421212333033. The reversal of 133421212333031 is 130333212124331.

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 133421212333031 - 2³⁸ = 133146334426087 is a prime.

It is a super-2 number, since 2×133421212333031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133421212333033) 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, 9530086595210 + ... + 9530086595223.

It is an arithmetic number, because the mean of its divisors is an integer number (38120346380868).

Almost surely, 2^{133421212333031} is an apocalyptic number.

133421212333031 is a deficient number, since it is larger than the sum of its proper divisors (19060173190441).

133421212333031 is an equidigital number, since it uses as much as digits as its factorization.

133421212333031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19060173190440.

The product of its (nonzero) digits is 23328, while the sum is 32.

Adding to 133421212333031 its reverse (130333212124331), we get a palindrome (263754424457362).

The spelling of 133421212333031 in words is "one hundred thirty-three trillion, four hundred twenty-one billion, two hundred twelve million, three hundred thirty-three thousand, thirty-one".