3213123020031 has 4 divisors (see below), whose sum is σ = 4284164026712. Its totient is φ = 2142082013352.

The previous prime is 3213123019999. The next prime is 3213123020047. The reversal of 3213123020031 is 1300203213123.

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

It is not a de Polignac number, because 3213123020031 - 2⁵ = 3213123019999 is a prime.

It is a super-2 number, since 2×3213123020031² (a number of 26 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 (3213123024031) 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, 535520503336 + ... + 535520503341.

It is an arithmetic number, because the mean of its divisors is an integer number (1071041006678).

Almost surely, 2^{3213123020031} is an apocalyptic number.

3213123020031 is a deficient number, since it is larger than the sum of its proper divisors (1071041006681).

3213123020031 is a wasteful number, since it uses less digits than its factorization.

3213123020031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071041006680.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 3213123020031 its reverse (1300203213123), we get a palindrome (4513326233154).

The spelling of 3213123020031 in words is "three trillion, two hundred thirteen billion, one hundred twenty-three million, twenty thousand, thirty-one".