131423442231554 has 32 divisors (see below), whose sum is σ = 216835834541760. Its totient is φ = 59737386677760.

The previous prime is 131423442231541. The next prime is 131423442231589. The reversal of 131423442231554 is 455132244324131.

It is a super-2 number, since 2×131423442231554² (a number of 29 digits) contains 22 as substring.

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, 524270057 + ... + 524520675.

It is an arithmetic number, because the mean of its divisors is an integer number (6776119829430).

Almost surely, 2^{131423442231554} is an apocalyptic number.

131423442231554 is a deficient number, since it is larger than the sum of its proper divisors (85412392310206).

131423442231554 is a wasteful number, since it uses less digits than its factorization.

131423442231554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447647 (or 447625 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 44.

Adding to 131423442231554 its reverse (455132244324131), we get a palindrome (586555686555685).

The spelling of 131423442231554 in words is "one hundred thirty-one trillion, four hundred twenty-three billion, four hundred forty-two million, two hundred thirty-one thousand, five hundred fifty-four".