1213404425044 has 24 divisors (see below), whose sum is σ = 2426917127040. Its totient is φ = 520007265696.

The previous prime is 1213404425033. The next prime is 1213404425063. The reversal of 1213404425044 is 4405244043121.

It is a super-3 number, since 3×1213404425044³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

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, 320407 + ... + 1590430.

It is an arithmetic number, because the mean of its divisors is an integer number (101121546960).

Almost surely, 2^{1213404425044} is an apocalyptic number.

1213404425044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1213404425044 is an abundant number, since it is smaller than the sum of its proper divisors (1213512701996).

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

1213404425044 is a wasteful number, since it uses less digits than its factorization.

1213404425044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933527 (or 1933525 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 1213404425044 its reverse (4405244043121), we get a palindrome (5618648468165).

The spelling of 1213404425044 in words is "one trillion, two hundred thirteen billion, four hundred four million, four hundred twenty-five thousand, forty-four".