231426305020740 has 96 divisors (see below), whose sum is σ = 648542619938304. Its totient is φ = 61661413242880.

The previous prime is 231426305020693. The next prime is 231426305020741. The reversal of 231426305020740 is 47020503624132.

231426305020740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×231426305020740³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (231426305020741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 523786597 + ... + 524228243.

It is an arithmetic number, because the mean of its divisors is an integer number (6755652291024).

Almost surely, 2^{231426305020740} is an apocalyptic number.

231426305020740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231426305020740 is an abundant number, since it is smaller than the sum of its proper divisors (417116314917564).

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

231426305020740 is a wasteful number, since it uses less digits than its factorization.

231426305020740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449037 (or 449035 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

Adding to 231426305020740 its reverse (47020503624132), we get a palindrome (278446808644872).

The spelling of 231426305020740 in words is "two hundred thirty-one trillion, four hundred twenty-six billion, three hundred five million, twenty thousand, seven hundred forty".