231533420150120 has 64 divisors (see below), whose sum is σ = 568326564786240. Its totient is φ = 84191413811200.

The previous prime is 231533420150113. The next prime is 231533420150141. The reversal of 231533420150120 is 21051024335132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6542315 + ... + 22491525.

It is an arithmetic number, because the mean of its divisors is an integer number (8880102574785).

Almost surely, 2^{231533420150120} is an apocalyptic number.

231533420150120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231533420150120 is an abundant number, since it is smaller than the sum of its proper divisors (336793144636120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231533420150120 is a wasteful number, since it uses less digits than its factorization.

231533420150120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15982226 (or 15982222 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 231533420150120 its reverse (21051024335132), we get a palindrome (252584444485252).

The spelling of 231533420150120 in words is "two hundred thirty-one trillion, five hundred thirty-three billion, four hundred twenty million, one hundred fifty thousand, one hundred twenty".