2131505415423 has 6 divisors (see below), whose sum is σ = 3078841155624. Its totient is φ = 1421003610276.

The previous prime is 2131505415409. The next prime is 2131505415437. The reversal of 2131505415423 is 3245145051312.

2131505415423 is a `hidden beast` number, since 2 + 13 + 1 + 50 + 54 + 1 + 542 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (2131505415409) and next prime (2131505415437).

It is not a de Polignac number, because 2131505415423 - 2⁴ = 2131505415407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131505415463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118416967515 + ... + 118416967532.

It is an arithmetic number, because the mean of its divisors is an integer number (513140192604).

Almost surely, 2^{2131505415423} is an apocalyptic number.

2131505415423 is a deficient number, since it is larger than the sum of its proper divisors (947335740201).

2131505415423 is a wasteful number, since it uses less digits than its factorization.

2131505415423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236833935053 (or 236833935050 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 2131505415423 in words is "two trillion, one hundred thirty-one billion, five hundred five million, four hundred fifteen thousand, four hundred twenty-three".