102311451 has 16 divisors (see below), whose sum is σ = 165352320. Its totient is φ = 62006760.

The previous prime is 102311353. The next prime is 102311477. The reversal of 102311451 is 154113201.

It is not a de Polignac number, because 102311451 - 2¹⁰ = 102310427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102311551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171945 + ... + 172538.

It is an arithmetic number, because the mean of its divisors is an integer number (10334520).

Almost surely, 2^102311451 is an apocalyptic number.

102311451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102311451 is a deficient number, since it is larger than the sum of its proper divisors (63040869).

102311451 is a wasteful number, since it uses less digits than its factorization.

102311451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344503 (or 344497 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 102311451 is about 10114.9123080727. The cubic root of 102311451 is about 467.7079456585.

Adding to 102311451 its reverse (154113201), we get a palindrome (256424652).

It can be divided in two parts, 1023114 and 51, that added together give a triangular number (1023165 = T₁₄₃₀).

The spelling of 102311451 in words is "one hundred two million, three hundred eleven thousand, four hundred fifty-one".