102421053 has 24 divisors (see below), whose sum is σ = 170584128. Its totient is φ = 58004352.

The previous prime is 102421049. The next prime is 102421057. The reversal of 102421053 is 350124201.

It is an interprime number because it is at equal distance from previous prime (102421049) and next prime (102421057).

It is not a de Polignac number, because 102421053 - 2² = 102421049 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102421057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75 + ... + 14312.

It is an arithmetic number, because the mean of its divisors is an integer number (7107672).

Almost surely, 2^102421053 is an apocalyptic number.

It is an amenable number.

102421053 is a deficient number, since it is larger than the sum of its proper divisors (68163075).

102421053 is a wasteful number, since it uses less digits than its factorization.

102421053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14513 (or 14510 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102421053 is about 10120.3287001955. The cubic root of 102421053 is about 467.8748980761.

Adding to 102421053 its reverse (350124201), we get a palindrome (452545254).

The spelling of 102421053 in words is "one hundred two million, four hundred twenty-one thousand, fifty-three".