1331423070 has 32 divisors (see below), whose sum is σ = 3255710112. Its totient is φ = 348346752.

The previous prime is 1331423069. The next prime is 1331423083. The reversal of 1331423070 is 703241331.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1331423070.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417097 + ... + 420276.

It is an arithmetic number, because the mean of its divisors is an integer number (101740941).

Almost surely, 2^1331423070 is an apocalyptic number.

1331423070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331423070 is an abundant number, since it is smaller than the sum of its proper divisors (1924287042).

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

1331423070 is a wasteful number, since it uses less digits than its factorization.

1331423070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837436.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 1331423070 is about 36488.6704334373. The cubic root of 1331423070 is about 1100.1165358629.

The spelling of 1331423070 in words is "one billion, three hundred thirty-one million, four hundred twenty-three thousand, seventy".