2145430515031 has 2 divisors, whose sum is σ = 2145430515032. Its totient is φ = 2145430515030.

The previous prime is 2145430515029. The next prime is 2145430515047. The reversal of 2145430515031 is 1305150345412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2145430515031 - 2¹ = 2145430515029 is a prime.

It is a super-2 number, since 2×2145430515031² (a number of 25 digits) contains 22 as substring.

Together with 2145430515029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145430512031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072715257515 + 1072715257516.

It is an arithmetic number, because the mean of its divisors is an integer number (1072715257516).

Almost surely, 2^{2145430515031} is an apocalyptic number.

2145430515031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145430515031 is an equidigital number, since it uses as much as digits as its factorization.

2145430515031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 2145430515031 in words is "two trillion, one hundred forty-five billion, four hundred thirty million, five hundred fifteen thousand, thirty-one".