1320404240310 has 32 divisors (see below), whose sum is σ = 3200346126432. Its totient is φ = 348621580800.

The previous prime is 1320404240303. The next prime is 1320404240317. The reversal of 1320404240310 is 130424040231.

It is an interprime number because it is at equal distance from previous prime (1320404240303) and next prime (1320404240317).

It is a super-2 number, since 2×1320404240310² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320404240317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217885459 + ... + 217891518.

It is an arithmetic number, because the mean of its divisors is an integer number (100010816451).

Almost surely, 2^{1320404240310} is an apocalyptic number.

1320404240310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320404240310 is an abundant number, since it is smaller than the sum of its proper divisors (1879941886122).

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

1320404240310 is a wasteful number, since it uses less digits than its factorization.

1320404240310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435777088.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1320404240310 its reverse (130424040231), we get a palindrome (1450828280541).

The spelling of 1320404240310 in words is "one trillion, three hundred twenty billion, four hundred four million, two hundred forty thousand, three hundred ten".