375263031421 has 4 divisors (see below), whose sum is σ = 377962765600. Its totient is φ = 372563297244.

The previous prime is 375263031401. The next prime is 375263031433. The reversal of 375263031421 is 124130362573.

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, and also an emirpimes, since its reverse is a distinct semiprime: 124130362573 = 7 ⋅17732908939.

It is a cyclic number.

It is not a de Polignac number, because 375263031421 - 2¹¹ = 375263029373 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 (375263031401) 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, 1349866881 + ... + 1349867158.

It is an arithmetic number, because the mean of its divisors is an integer number (94490691400).

Almost surely, 2^375263031421 is an apocalyptic number.

It is an amenable number.

375263031421 is a deficient number, since it is larger than the sum of its proper divisors (2699734179).

375263031421 is a wasteful number, since it uses less digits than its factorization.

375263031421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699734178.

The product of its (nonzero) digits is 90720, while the sum is 37.

Adding to 375263031421 its reverse (124130362573), we get a palindrome (499393393994).

The spelling of 375263031421 in words is "three hundred seventy-five billion, two hundred sixty-three million, thirty-one thousand, four hundred twenty-one".