1513452143431 has 4 divisors (see below), whose sum is σ = 1513580121112. Its totient is φ = 1513324165752.

The previous prime is 1513452143389. The next prime is 1513452143459. The reversal of 1513452143431 is 1343412543151.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1513452143431 - 2³⁹ = 963696329543 is a prime.

It is a super-2 number, since 2×1513452143431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513452143471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63971100 + ... + 63994753.

It is an arithmetic number, because the mean of its divisors is an integer number (378395030278).

Almost surely, 2^{1513452143431} is an apocalyptic number.

1513452143431 is a deficient number, since it is larger than the sum of its proper divisors (127977681).

1513452143431 is a wasteful number, since it uses less digits than its factorization.

1513452143431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127977680.

The product of its digits is 86400, while the sum is 37.

Adding to 1513452143431 its reverse (1343412543151), we get a palindrome (2856864686582).

The spelling of 1513452143431 in words is "one trillion, five hundred thirteen billion, four hundred fifty-two million, one hundred forty-three thousand, four hundred thirty-one".