1234242220031 has 4 divisors (see below), whose sum is σ = 1234313833200. Its totient is φ = 1234170606864.

The previous prime is 1234242219997. The next prime is 1234242220139. The reversal of 1234242220031 is 1300222424321.

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 1234242220031 - 2³⁰ = 1233168478207 is a prime.

It is a super-2 number, since 2×1234242220031² (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 (1234242240031) 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, 35780726 + ... + 35815203.

It is an arithmetic number, because the mean of its divisors is an integer number (308578458300).

Almost surely, 2^{1234242220031} is an apocalyptic number.

1234242220031 is a deficient number, since it is larger than the sum of its proper divisors (71613169).

1234242220031 is an equidigital number, since it uses as much as digits as its factorization.

1234242220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71613168.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1234242220031 its reverse (1300222424321), we get a palindrome (2534464644352).

The spelling of 1234242220031 in words is "one trillion, two hundred thirty-four billion, two hundred forty-two million, two hundred twenty thousand, thirty-one".