231120041520436 has 24 divisors (see below), whose sum is σ = 405446829330816. Its totient is φ = 115278428131680.

The previous prime is 231120041520397. The next prime is 231120041520481. The reversal of 231120041520436 is 634025140021132.

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, 39493816 + ... + 44966671.

It is an arithmetic number, because the mean of its divisors is an integer number (16893617888784).

Almost surely, 2^{231120041520436} is an apocalyptic number.

It is an amenable number.

231120041520436 is a deficient number, since it is larger than the sum of its proper divisors (174326787810380).

231120041520436 is a wasteful number, since it uses less digits than its factorization.

231120041520436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84462159 (or 84462157 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 231120041520436 its reverse (634025140021132), we get a palindrome (865145181541568).

The spelling of 231120041520436 in words is "two hundred thirty-one trillion, one hundred twenty billion, forty-one million, five hundred twenty thousand, four hundred thirty-six".