102030112211231 has 32 divisors (see below), whose sum is σ = 110403308188800. Its totient is φ = 93943543644160.

The previous prime is 102030112211219. The next prime is 102030112211243. The reversal of 102030112211231 is 132112211030201.

It is an interprime number because it is at equal distance from previous prime (102030112211219) and next prime (102030112211243).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102030112211231 is a prime.

It is a super-2 number, since 2×102030112211231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102030112211201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105804815 + ... + 106764783.

It is an arithmetic number, because the mean of its divisors is an integer number (3450103380900).

Almost surely, 2^{102030112211231} is an apocalyptic number.

102030112211231 is a deficient number, since it is larger than the sum of its proper divisors (8373195977569).

102030112211231 is a wasteful number, since it uses less digits than its factorization.

102030112211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960739.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 102030112211231 its reverse (132112211030201), we get a palindrome (234142323241432).

The spelling of 102030112211231 in words is "one hundred two trillion, thirty billion, one hundred twelve million, two hundred eleven thousand, two hundred thirty-one".