1142122431031 has 4 divisors (see below), whose sum is σ = 1144666134000. Its totient is φ = 1139578728064.

The previous prime is 1142122430989. The next prime is 1142122431049. The reversal of 1142122431031 is 1301342212411.

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 1142122431031 - 2⁷ = 1142122430903 is a prime.

It is a super-2 number, since 2×1142122431031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142122430987 and 1142122431005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142122431061) 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, 1271850811 + ... + 1271851708.

It is an arithmetic number, because the mean of its divisors is an integer number (286166533500).

Almost surely, 2^{1142122431031} is an apocalyptic number.

1142122431031 is a deficient number, since it is larger than the sum of its proper divisors (2543702969).

1142122431031 is an equidigital number, since it uses as much as digits as its factorization.

1142122431031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543702968.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1142122431031 its reverse (1301342212411), we get a palindrome (2443464643442).

The spelling of 1142122431031 in words is "one trillion, one hundred forty-two billion, one hundred twenty-two million, four hundred thirty-one thousand, thirty-one".