102031357 has 2 divisors, whose sum is σ = 102031358. Its totient is φ = 102031356.

The previous prime is 102031351. The next prime is 102031361. The reversal of 102031357 is 753130201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102030201 + 1156 = 10101^2 + 34^2 .

It is an emirp because it is prime and its reverse (753130201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102031357 is a prime.

It is a super-2 number, since 2×102031357² = 20820795622522898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102031351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51015678 + 51015679.

It is an arithmetic number, because the mean of its divisors is an integer number (51015679).

Almost surely, 2^102031357 is an apocalyptic number.

It is an amenable number.

102031357 is a deficient number, since it is larger than the sum of its proper divisors (1).

102031357 is an equidigital number, since it uses as much as digits as its factorization.

102031357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 102031357 is about 10101.0572218951. The cubic root of 102031357 is about 467.2807470842.

Adding to 102031357 its reverse (753130201), we get a palindrome (855161558).

The spelling of 102031357 in words is "one hundred two million, thirty-one thousand, three hundred fifty-seven".