131403233310421 has 4 divisors (see below), whose sum is σ = 131636631593952. Its totient is φ = 131169835026892.

The previous prime is 131403233310373. The next prime is 131403233310473. The reversal of 131403233310421 is 124013332304131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131403233310421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131403233380421) 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, 116699140921 + ... + 116699142046.

It is an arithmetic number, because the mean of its divisors is an integer number (32909157898488).

Almost surely, 2^{131403233310421} is an apocalyptic number.

It is an amenable number.

131403233310421 is a deficient number, since it is larger than the sum of its proper divisors (233398283531).

131403233310421 is an equidigital number, since it uses as much as digits as its factorization.

131403233310421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233398283530.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 131403233310421 its reverse (124013332304131), we get a palindrome (255416565614552).

The spelling of 131403233310421 in words is "one hundred thirty-one trillion, four hundred three billion, two hundred thirty-three million, three hundred ten thousand, four hundred twenty-one".