1331432122 has 4 divisors (see below), whose sum is σ = 1997148186. Its totient is φ = 665716060.

The previous prime is 1331432101. The next prime is 1331432131. The reversal of 1331432122 is 2212341331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1300972761 + 30459361 = 36069^2 + 5519^2 .

It is a super-2 number, since 2×1331432122² = 3545422990986845768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331432093 and 1331432102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332858029 + ... + 332858032.

Almost surely, 2^1331432122 is an apocalyptic number.

1331432122 is a deficient number, since it is larger than the sum of its proper divisors (665716064).

1331432122 is an equidigital number, since it uses as much as digits as its factorization.

1331432122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665716063.

The product of its digits is 864, while the sum is 22.

The square root of 1331432122 is about 36488.7944717279. The cubic root of 1331432122 is about 1100.1190289929.

Adding to 1331432122 its reverse (2212341331), we get a palindrome (3543773453).

The spelling of 1331432122 in words is "one billion, three hundred thirty-one million, four hundred thirty-two thousand, one hundred twenty-two".