102001111203031 has 4 divisors (see below), whose sum is σ = 102006650846232. Its totient is φ = 101995571559832.

The previous prime is 102001111203029. The next prime is 102001111203149. The reversal of 102001111203031 is 130302111100201.

It is a happy number.

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 102001111203031 - 2¹ = 102001111203029 is a prime.

It is a super-2 number, since 2×102001111203031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102001111202996 and 102001111203014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001111293031) 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, 2769793981 + ... + 2769830806.

It is an arithmetic number, because the mean of its divisors is an integer number (25501662711558).

Almost surely, 2^{102001111203031} is an apocalyptic number.

102001111203031 is a deficient number, since it is larger than the sum of its proper divisors (5539643201).

102001111203031 is an equidigital number, since it uses as much as digits as its factorization.

102001111203031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5539643200.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 102001111203031 its reverse (130302111100201), we get a palindrome (232303222303232).

The spelling of 102001111203031 in words is "one hundred two trillion, one billion, one hundred eleven million, two hundred three thousand, thirty-one".