1233130340 has 24 divisors (see below), whose sum is σ = 2788772280. Its totient is φ = 455309568.

The previous prime is 1233130337. The next prime is 1233130387. The reversal of 1233130340 is 430313321.

It can be written as a sum of positive squares in 4 ways, for example, as 60341824 + 1172788516 = 7768^2 + 34246^2 .

It is a super-2 number, since 2×1233130340² = 3041220870857031200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2371145 + ... + 2371664.

It is an arithmetic number, because the mean of its divisors is an integer number (116198845).

Almost surely, 2^1233130340 is an apocalyptic number.

1233130340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1233130340 is an abundant number, since it is smaller than the sum of its proper divisors (1555641940).

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

1233130340 is a wasteful number, since it uses less digits than its factorization.

1233130340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4742831 (or 4742829 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1233130340 is about 35115.9556327320. The cubic root of 1233130340 is about 1072.3494361407.

Adding to 1233130340 its reverse (430313321), we get a palindrome (1663443661).

The spelling of 1233130340 in words is "one billion, two hundred thirty-three million, one hundred thirty thousand, three hundred forty".