231533420413432 has 32 divisors (see below), whose sum is σ = 459667633108320. Its totient is φ = 108955553674240.

The previous prime is 231533420413391. The next prime is 231533420413499. The reversal of 231533420413432 is 234314024335132.

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, 511557 + ... + 21525067.

It is an arithmetic number, because the mean of its divisors is an integer number (14364613534635).

Almost surely, 2^{231533420413432} is an apocalyptic number.

It is an amenable number.

231533420413432 is a deficient number, since it is larger than the sum of its proper divisors (228134212694888).

231533420413432 is a wasteful number, since it uses less digits than its factorization.

231533420413432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21094551 (or 21094547 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 40.

Adding to 231533420413432 its reverse (234314024335132), we get a palindrome (465847444748564).

The spelling of 231533420413432 in words is "two hundred thirty-one trillion, five hundred thirty-three billion, four hundred twenty million, four hundred thirteen thousand, four hundred thirty-two".