331200123420 has 48 divisors (see below), whose sum is σ = 942562984608. Its totient is φ = 86872162560.

The previous prime is 331200123409. The next prime is 331200123421. The reversal of 331200123420 is 24321002133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331200123421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45242259 + ... + 45249578.

It is an arithmetic number, because the mean of its divisors is an integer number (19636728846).

Almost surely, 2^331200123420 is an apocalyptic number.

331200123420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331200123420 is an abundant number, since it is smaller than the sum of its proper divisors (611362861188).

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

331200123420 is a wasteful number, since it uses less digits than its factorization.

331200123420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90491910 (or 90491908 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 331200123420 its reverse (24321002133), we get a palindrome (355521125553).

The spelling of 331200123420 in words is "three hundred thirty-one billion, two hundred million, one hundred twenty-three thousand, four hundred twenty".