1212001323031 has 16 divisors (see below), whose sum is σ = 1267579272960. Its totient is φ = 1156665723840.

The previous prime is 1212001323019. The next prime is 1212001323073. The reversal of 1212001323031 is 1303231002121.

It is not a de Polignac number, because 1212001323031 - 2¹⁵ = 1212001290263 is a prime.

It is a super-2 number, since 2×1212001323031² (a number of 25 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 (1212001323011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25966891 + ... + 26013523.

It is an arithmetic number, because the mean of its divisors is an integer number (79223704560).

Almost surely, 2^{1212001323031} is an apocalyptic number.

1212001323031 is a deficient number, since it is larger than the sum of its proper divisors (55577949929).

1212001323031 is a wasteful number, since it uses less digits than its factorization.

1212001323031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49206.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1212001323031 its reverse (1303231002121), we get a palindrome (2515232325152).

The spelling of 1212001323031 in words is "one trillion, two hundred twelve billion, one million, three hundred twenty-three thousand, thirty-one".