1331240102 has 4 divisors (see below), whose sum is σ = 1996860156. Its totient is φ = 665620050.

The previous prime is 1331240089. The next prime is 1331240123. The reversal of 1331240102 is 2010421331.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332810024 + ... + 332810027.

It is an arithmetic number, because the mean of its divisors is an integer number (499215039).

Almost surely, 2^1331240102 is an apocalyptic number.

1331240102 is a deficient number, since it is larger than the sum of its proper divisors (665620054).

1331240102 is an equidigital number, since it uses as much as digits as its factorization.

1331240102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665620053.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1331240102 is about 36486.1631581069. The cubic root of 1331240102 is about 1100.0661398248.

Adding to 1331240102 its reverse (2010421331), we get a palindrome (3341661433).

The spelling of 1331240102 in words is "one billion, three hundred thirty-one million, two hundred forty thousand, one hundred two".