151231102040 has 32 divisors (see below), whose sum is σ = 341364123360. Its totient is φ = 60297926400.

The previous prime is 151231102019. The next prime is 151231102049. The reversal of 151231102040 is 40201132151.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151231102049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6065981 + ... + 6090860.

It is an arithmetic number, because the mean of its divisors is an integer number (10667628855).

Almost surely, 2^151231102040 is an apocalyptic number.

151231102040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151231102040 is an abundant number, since it is smaller than the sum of its proper divisors (190133021320).

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

151231102040 is a wasteful number, since it uses less digits than its factorization.

151231102040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12157163 (or 12157159 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 151231102040 its reverse (40201132151), we get a palindrome (191432234191).

The spelling of 151231102040 in words is "one hundred fifty-one billion, two hundred thirty-one million, one hundred two thousand, forty".