231540011545404 has 48 divisors (see below), whose sum is σ = 540482248857600. Its totient is φ = 77148259634880.

The previous prime is 231540011545373. The next prime is 231540011545439. The reversal of 231540011545404 is 404545110045132.

231540011545404 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-2 number, since 2×231540011545404² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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, 1301992437 + ... + 1302170259.

It is an arithmetic number, because the mean of its divisors is an integer number (11260046851200).

Almost surely, 2^{231540011545404} is an apocalyptic number.

It is an amenable number.

231540011545404 is an abundant number, since it is smaller than the sum of its proper divisors (308942237312196).

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

231540011545404 is a wasteful number, since it uses less digits than its factorization.

231540011545404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221850 (or 221848 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 39.

The spelling of 231540011545404 in words is "two hundred thirty-one trillion, five hundred forty billion, eleven million, five hundred forty-five thousand, four hundred four".