2031126402129 has 8 divisors (see below), whose sum is σ = 2954365675872. Its totient is φ = 1230985698240.

The previous prime is 2031126402119. The next prime is 2031126402143. The reversal of 2031126402129 is 9212046211302.

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

It is not a de Polignac number, because 2031126402129 - 2¹² = 2031126398033 is a prime.

It is a super-2 number, since 2×2031126402129² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 61549284913 = 2031126402129 / (2 + 0 + 3 + 1 + 1 + 2 + 6 + 4 + 0 + 2 + 1 + 2 + 9).

It is a self number, because there is not a number n which added to its sum of digits gives 2031126402129.

It is not an unprimeable number, because it can be changed into a prime (2031126402119) 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, 30774642424 + ... + 30774642489.

It is an arithmetic number, because the mean of its divisors is an integer number (369295709484).

Almost surely, 2^{2031126402129} is an apocalyptic number.

It is an amenable number.

2031126402129 is a deficient number, since it is larger than the sum of its proper divisors (923239273743).

2031126402129 is a wasteful number, since it uses less digits than its factorization.

2031126402129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61549284927.

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 2031126402129 in words is "two trillion, thirty-one billion, one hundred twenty-six million, four hundred two thousand, one hundred twenty-nine".