131001042402 has 48 divisors (see below), whose sum is σ = 285341498208. Its totient is φ = 43435941120.

The previous prime is 131001042401. The next prime is 131001042461. The reversal of 131001042402 is 204240100131.

It is a super-2 number, since 2×131001042402² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (131001042401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2614578 + ... + 2664210.

It is an arithmetic number, because the mean of its divisors is an integer number (5944614546).

Almost surely, 2^131001042402 is an apocalyptic number.

131001042402 is an abundant number, since it is smaller than the sum of its proper divisors (154340455806).

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

131001042402 is a wasteful number, since it uses less digits than its factorization.

131001042402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50415 (or 50412 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 131001042402 its reverse (204240100131), we get a palindrome (335241142533).

The spelling of 131001042402 in words is "one hundred thirty-one billion, one million, forty-two thousand, four hundred two".