1233012020331 has 144 divisors (see below), whose sum is σ = 2258418140160. Its totient is φ = 592368215040.

The previous prime is 1233012020309. The next prime is 1233012020353. The reversal of 1233012020331 is 1330202103321.

It is an interprime number because it is at equal distance from previous prime (1233012020309) and next prime (1233012020353).

It is not a de Polignac number, because 1233012020331 - 2¹⁰ = 1233012019307 is a prime.

It is a super-2 number, since 2×1233012020331² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1233012020298 and 1233012020307.

It is not an unprimeable number, because it can be changed into a prime (1233012020381) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 17084640 + ... + 17156658.

Almost surely, 2^{1233012020331} is an apocalyptic number.

1233012020331 is a deficient number, since it is larger than the sum of its proper divisors (1025406119829).

1233012020331 is a wasteful number, since it uses less digits than its factorization.

1233012020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72114 (or 72090 counting only the distinct ones).

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

Adding to 1233012020331 its reverse (1330202103321), we get a palindrome (2563214123652).

The spelling of 1233012020331 in words is "one trillion, two hundred thirty-three billion, twelve million, twenty thousand, three hundred thirty-one".