1312240421004 has 48 divisors (see below), whose sum is σ = 3363179124480. Its totient is φ = 396374679360.

The previous prime is 1312240420993. The next prime is 1312240421033. The reversal of 1312240421004 is 4001240422131.

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, 125113027 + ... + 125123514.

It is an arithmetic number, because the mean of its divisors is an integer number (70066231760).

Almost surely, 2^{1312240421004} is an apocalyptic number.

It is an amenable number.

1312240421004 is an abundant number, since it is smaller than the sum of its proper divisors (2050938703476).

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

1312240421004 is a wasteful number, since it uses less digits than its factorization.

1312240421004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250236590 (or 250236588 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1312240421004 its reverse (4001240422131), we get a palindrome (5313480843135).

The spelling of 1312240421004 in words is "one trillion, three hundred twelve billion, two hundred forty million, four hundred twenty-one thousand, four".