1240231344402 has 64 divisors (see below), whose sum is σ = 2514310502400. Its totient is φ = 407811236544.

The previous prime is 1240231344377. The next prime is 1240231344409. The reversal of 1240231344402 is 2044431320421.

It is a self number, because there is not a number n which added to its sum of digits gives 1240231344402.

It is not an unprimeable number, because it can be changed into a prime (1240231344409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277889623 + ... + 277894085.

It is an arithmetic number, because the mean of its divisors is an integer number (39286101600).

Almost surely, 2^{1240231344402} is an apocalyptic number.

1240231344402 is an abundant number, since it is smaller than the sum of its proper divisors (1274079157998).

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

1240231344402 is a wasteful number, since it uses less digits than its factorization.

1240231344402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6687.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1240231344402 its reverse (2044431320421), we get a palindrome (3284662664823).

The spelling of 1240231344402 in words is "one trillion, two hundred forty billion, two hundred thirty-one million, three hundred forty-four thousand, four hundred two".