102121423031 has 2 divisors, whose sum is σ = 102121423032. Its totient is φ = 102121423030.

The previous prime is 102121422989. The next prime is 102121423037. The reversal of 102121423031 is 130324121201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102121423031 - 2⁶ = 102121422967 is a prime.

It is a super-2 number, since 2×102121423031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102121422994 and 102121423012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102121423037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51060711515 + 51060711516.

It is an arithmetic number, because the mean of its divisors is an integer number (51060711516).

Almost surely, 2^102121423031 is an apocalyptic number.

102121423031 is a deficient number, since it is larger than the sum of its proper divisors (1).

102121423031 is an equidigital number, since it uses as much as digits as its factorization.

102121423031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 102121423031 its reverse (130324121201), we get a palindrome (232445544232).

The spelling of 102121423031 in words is "one hundred two billion, one hundred twenty-one million, four hundred twenty-three thousand, thirty-one".