1232020031 has 4 divisors (see below), whose sum is σ = 1344021864. Its totient is φ = 1120018200.

The previous prime is 1232020007. The next prime is 1232020061. The reversal of 1232020031 is 1300202321.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232020031 is a prime.

It is a super-2 number, since 2×1232020031² = 3035746713570481922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232019988 and 1232020015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232020061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56000900 + ... + 56000921.

It is an arithmetic number, because the mean of its divisors is an integer number (336005466).

Almost surely, 2^1232020031 is an apocalyptic number.

1232020031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1232020031 is a deficient number, since it is larger than the sum of its proper divisors (112001833).

1232020031 is a wasteful number, since it uses less digits than its factorization.

1232020031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112001832.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1232020031 is about 35100.1428914470. The cubic root of 1232020031 is about 1072.0274921362.

Adding to 1232020031 its reverse (1300202321), we get a palindrome (2532222352).

The spelling of 1232020031 in words is "one billion, two hundred thirty-two million, twenty thousand, thirty-one".