1122431031 has 6 divisors (see below), whose sum is σ = 1621289280. Its totient is φ = 748287348.

The previous prime is 1122430997. The next prime is 1122431039. The reversal of 1122431031 is 1301342211.

It is not a de Polignac number, because 1122431031 - 2¹⁹ = 1121906743 is a prime.

It is a super-2 number, since 2×1122431031² = 2519702838703445922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1122430995 and 1122431013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122431039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62357271 + ... + 62357288.

It is an arithmetic number, because the mean of its divisors is an integer number (270214880).

Almost surely, 2^1122431031 is an apocalyptic number.

1122431031 is a deficient number, since it is larger than the sum of its proper divisors (498858249).

1122431031 is a wasteful number, since it uses less digits than its factorization.

1122431031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124714565 (or 124714562 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1122431031 is about 33502.7018462691. The cubic root of 1122431031 is about 1039.2496532295.

Adding to 1122431031 its reverse (1301342211), we get a palindrome (2423773242).

The spelling of 1122431031 in words is "one billion, one hundred twenty-two million, four hundred thirty-one thousand, thirty-one".