19513001131004 has 12 divisors (see below), whose sum is σ = 34147929120144. Its totient is φ = 9756449953824.

The previous prime is 19513001130949. The next prime is 19513001131021. The reversal of 19513001131004 is 40013110031591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11778737 + ... + 13332840.

It is an arithmetic number, because the mean of its divisors is an integer number (2845660760012).

Almost surely, 2^{19513001131004} is an apocalyptic number.

It is an amenable number.

19513001131004 is a deficient number, since it is larger than the sum of its proper divisors (14634927989140).

19513001131004 is a wasteful number, since it uses less digits than its factorization.

19513001131004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25305844 (or 25305842 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 29.

Adding to 19513001131004 its reverse (40013110031591), we get a palindrome (59526111162595).

The spelling of 19513001131004 in words is "nineteen trillion, five hundred thirteen billion, one million, one hundred thirty-one thousand, four".