2102403001031 has 4 divisors (see below), whose sum is σ = 2103556268352. Its totient is φ = 2101249733712.

The previous prime is 2102403000979. The next prime is 2102403001063. The reversal of 2102403001031 is 1301003042012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2102403001031 - 2³⁴ = 2085223131847 is a prime.

It is a super-2 number, since 2×2102403001031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102403001091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576630926 + ... + 576634571.

It is an arithmetic number, because the mean of its divisors is an integer number (525889067088).

Almost surely, 2^{2102403001031} is an apocalyptic number.

2102403001031 is a deficient number, since it is larger than the sum of its proper divisors (1153267321).

2102403001031 is a wasteful number, since it uses less digits than its factorization.

2102403001031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153267320.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2102403001031 its reverse (1301003042012), we get a palindrome (3403406043043).

The spelling of 2102403001031 in words is "two trillion, one hundred two billion, four hundred three million, one thousand, thirty-one".