Search a number
BaseRepresentation
bin1110000110110011010000…
…01101010011110000111010
311001211111001021122201101220
413003121220031103300322
513031212431021143002
6145550220420452510
76351056366426043
oct703315015236072
9131744037581356
1031020002131002
11997a566571025
12358ba73b4a136
13144023467a661
1479353a0b18ca
1538bd7c57c7bc
hex1c3668353c3a

31020002131002 has 32 divisors (see below), whose sum is σ = 65730293672832. Its totient is φ = 9725709464064.

The previous prime is 31020002130973. The next prime is 31020002131031. The reversal of 31020002131002 is 20013120002013.

Adding to 31020002131002 its reverse (20013120002013), we get a palindrome (51033122133015).

It is an interprime number because it is at equal distance from previous prime (31020002130973) and next prime (31020002131031).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94458883 + ... + 94786710.

It is an arithmetic number, because the mean of its divisors is an integer number (2054071677276).

Almost surely, 231020002131002 is an apocalyptic number.

31020002131002 is an abundant number, since it is smaller than the sum of its proper divisors (34710291541830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31020002131002 is a wasteful number, since it uses less digits than its factorization.

31020002131002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189247222.

The product of its (nonzero) digits is 72, while the sum is 15.

The spelling of 31020002131002 in words is "thirty-one trillion, twenty billion, two million, one hundred thirty-one thousand, two".