1121431302 has 24 divisors (see below), whose sum is σ = 2440480536. Its totient is φ = 372162336.

The previous prime is 1121431273. The next prime is 1121431313. The reversal of 1121431302 is 2031341211.

1121431302 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133143 + ... + 141314.

It is an arithmetic number, because the mean of its divisors is an integer number (101686689).

Almost surely, 2^1121431302 is an apocalyptic number.

1121431302 is an abundant number, since it is smaller than the sum of its proper divisors (1319049234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121431302 is a wasteful number, since it uses less digits than its factorization.

1121431302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274692 (or 274689 counting only the distinct ones).

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

The square root of 1121431302 is about 33487.7783974990. The cubic root of 1121431302 is about 1038.9410146276.

Adding to 1121431302 its reverse (2031341211), we get a palindrome (3152772513).

Subtracting 1121431302 from its reverse (2031341211), we obtain a palindrome (909909909).

The spelling of 1121431302 in words is "one billion, one hundred twenty-one million, four hundred thirty-one thousand, three hundred two".