102451210101045 has 96 divisors (see below), whose sum is σ = 197429651887104. Its totient is φ = 48805980364800.

The previous prime is 102451210101043. The next prime is 102451210101131. The reversal of 102451210101045 is 540101012154201.

102451210101045 is a `hidden beast` number, since 1 + 0 + 2 + 4 + 512 + 1 + 0 + 101 + 0 + 45 = 666.

It is not a de Polignac number, because 102451210101045 - 2¹ = 102451210101043 is a prime.

It is a super-2 number, since 2×102451210101045² (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 (102451210101043) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 199718485 + ... + 200230805.

It is an arithmetic number, because the mean of its divisors is an integer number (2056558873824).

Almost surely, 2^{102451210101045} is an apocalyptic number.

102451210101045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102451210101045 is a deficient number, since it is larger than the sum of its proper divisors (94978441786059).

102451210101045 is a wasteful number, since it uses less digits than its factorization.

102451210101045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523403 (or 523400 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

Adding to 102451210101045 its reverse (540101012154201), we get a palindrome (642552222255246).

The spelling of 102451210101045 in words is "one hundred two trillion, four hundred fifty-one billion, two hundred ten million, one hundred one thousand, forty-five".