242103221031 has 16 divisors (see below), whose sum is σ = 390620323584. Its totient is φ = 130206774144.

The previous prime is 242103220987. The next prime is 242103221033. The reversal of 242103221031 is 130122301242.

It is not a de Polignac number, because 242103221031 - 2³⁵ = 207743482663 is a prime.

It is a super-2 number, since 2×242103221031² (a number of 24 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 = 242103220989 and 242103221007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242103221033) 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, 339079785 + ... + 339080498.

It is an arithmetic number, because the mean of its divisors is an integer number (24413770224).

Almost surely, 2^242103221031 is an apocalyptic number.

242103221031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

242103221031 is a deficient number, since it is larger than the sum of its proper divisors (148517102553).

242103221031 is a wasteful number, since it uses less digits than its factorization.

242103221031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678160310.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 242103221031 its reverse (130122301242), we get a palindrome (372225522273).

The spelling of 242103221031 in words is "two hundred forty-two billion, one hundred three million, two hundred twenty-one thousand, thirty-one".