131001401402 has 8 divisors (see below), whose sum is σ = 196505428116. Its totient is φ = 65499592032.

The previous prime is 131001401389. The next prime is 131001401449. The reversal of 131001401402 is 204104100131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 85760536801 + 45240864601 = 292849^2 + 212699^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×131001401402² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397793 + ... + 648260.

Almost surely, 2^131001401402 is an apocalyptic number.

131001401402 is a deficient number, since it is larger than the sum of its proper divisors (65504026714).

131001401402 is a wasteful number, since it uses less digits than its factorization.

131001401402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108672.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 131001401402 its reverse (204104100131), we get a palindrome (335105501533).

The spelling of 131001401402 in words is "one hundred thirty-one billion, one million, four hundred one thousand, four hundred two".