126140131243 has 8 divisors (see below), whose sum is σ = 144187531488. Its totient is φ = 108099576384.

The previous prime is 126140131237. The next prime is 126140131267. The reversal of 126140131243 is 342131041621.

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

It is a cyclic number.

It is not a de Polignac number, because 126140131243 - 2¹³ = 126140123051 is a prime.

It is a super-2 number, since 2×126140131243² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121140131243) 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, 1671796 + ... + 1745617.

It is an arithmetic number, because the mean of its divisors is an integer number (18023441436).

Almost surely, 2^126140131243 is an apocalyptic number.

126140131243 is a deficient number, since it is larger than the sum of its proper divisors (18047400245).

126140131243 is an equidigital number, since it uses as much as digits as its factorization.

126140131243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422693.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 126140131243 its reverse (342131041621), we get a palindrome (468271172864).

The spelling of 126140131243 in words is "one hundred twenty-six billion, one hundred forty million, one hundred thirty-one thousand, two hundred forty-three".