102911031 has 12 divisors (see below), whose sum is σ = 148846152. Its totient is φ = 68516496.

The previous prime is 102910981. The next prime is 102911051. The reversal of 102911031 is 130119201.

102911031 is a nontrivial binomial coefficient, being equal to C(14347, 2).

It is not a de Polignac number, because 102911031 - 2⁷ = 102910903 is a prime.

It is a super-2 number, since 2×102911031² = 21181360602965922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102910995 and 102911013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102911051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1 + ... + 14346.

It is an arithmetic number, because the mean of its divisors is an integer number (12403846).

Almost surely, 2^102911031 is an apocalyptic number.

102911031 is the 14346-th triangular number.

102911031 is a deficient number, since it is larger than the sum of its proper divisors (45935121).

102911031 is a wasteful number, since it uses less digits than its factorization.

102911031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15150 (or 15147 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 102911031 is about 10144.5074301318. The cubic root of 102911031 is about 468.6198093909.

The spelling of 102911031 in words is "one hundred two million, nine hundred eleven thousand, thirty-one".