101002001231 has 4 divisors (see below), whose sum is σ = 101003065464. Its totient is φ = 101000937000.

The previous prime is 101002001209. The next prime is 101002001237. The reversal of 101002001231 is 132100200101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 101002001231 - 2¹⁰ = 101002000207 is a prime.

It is a super-2 number, since 2×101002001231² (a number of 23 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 (101002001237) 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, 374120 + ... + 584781.

It is an arithmetic number, because the mean of its divisors is an integer number (25250766366).

Almost surely, 2^101002001231 is an apocalyptic number.

101002001231 is a deficient number, since it is larger than the sum of its proper divisors (1064233).

101002001231 is an equidigital number, since it uses as much as digits as its factorization.

101002001231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064232.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 101002001231 its reverse (132100200101), we get a palindrome (233102201332).

The spelling of 101002001231 in words is "one hundred one billion, two million, one thousand, two hundred thirty-one".